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  • Spam Assassin on windows

    - by ebeworld
    I just installed spam assassin and run for its sample ham mail as spamassassin sample-nonspam.txt, but it ended up marking it as a spam. What configuration am i missing to change? Result of the check is: From: Keith Dawson To: [email protected] Subject: **SPAM** TBTF ping for 2001-04-20: Reviving Date: Fri, 20 Apr 2001 16:59:58 -0400 Message-Id: X-Spam-Flag: YES X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on ebeworld-PC X-Spam-Level: **** X-Spam-Status: Yes, score=10.5 required=6.3 tests=DCC_CHECK,DIGEST_MULTIPLE, DNS_FROM_OPENWHOIS,RAZOR2_CF_RANGE_51_100,RAZOR2_CF_RANGE_E4_51_100, RAZOR2_CHECK shortcircuit=no autolearn=no version=3.2.3 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----------=_4BF17E8E.BF8E0000" This is a multi-part message in MIME format. ------------=_4BF17E8E.BF8E0000 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit This mail is probably spam. The original message has been attached intact in RFC 822 format. Content preview: -----BEGIN PGP SIGNED MESSAGE----- TBTF ping for 2001-04-20: Reviving T a s t y B i t s f r o m t h e T e c h n o l o g y F r o n t [...] Content analysis details: (10.5 points, 6.3 required) 2.4 DNS_FROM_OPENWHOIS RBL: Envelope sender listed in bl.open-whois.org. 1.5 RAZOR2_CF_RANGE_E4_51_100 Razor2 gives engine 4 confidence level above 50% [cf: 58] 2.5 RAZOR2_CHECK Listed in Razor2 (http://razor.sf.net/) 0.5 RAZOR2_CF_RANGE_51_100 Razor2 gives confidence level above 50% [cf: 58] 3.6 DCC_CHECK Listed in DCC (http://rhyolite.com/anti-spam/dcc/) 0.0 DIGEST_MULTIPLE Message hits more than one network digest check ------------=_4BF17E8E.BF8E0000 Content-Type: message/rfc822; x-spam-type=original Content-Description: original message before SpamAssassin Content-Disposition: inline Content-Transfer-Encoding: 8bit Return-Path: Delivered-To: [email protected] Received: from europe.std.com (europe.std.com [199.172.62.20]) by mail.netnoteinc.com (Postfix) with ESMTP id 392E1114061 for ; Fri, 20 Apr 2001 21:34:46 +0000 (Eire) Received: (from daemon@localhost) by europe.std.com (8.9.3/8.9.3) id RAA09630 for tbtf-outgoing; Fri, 20 Apr 2001 17:31:18 -0400 (EDT) Received: from sgi04-e.std.com (sgi04-e.std.com [199.172.62.134]) by europe.std.com (8.9.3/8.9.3) with ESMTP id RAA08749 for ; Fri, 20 Apr 2001 17:24:31 -0400 (EDT) Received: from world.std.com (world-f.std.com [199.172.62.5]) by sgi04-e.std.com (8.9.3/8.9.3) with ESMTP id RAA8278330 for ; Fri, 20 Apr 2001 17:24:31 -0400 (EDT) Received: (from dawson@localhost) by world.std.com (8.9.3/8.9.3) id RAA26781 for [email protected]; Fri, 20 Apr 2001 17:24:31 -0400 (EDT) Received: from sgi04-e.std.com (sgi04-e.std.com [199.172.62.134]) by europe.std.com (8.9.3/8.9.3) with ESMTP id RAA07541 for ; Fri, 20 Apr 2001 17:12:06 -0400 (EDT) Received: from world.std.com (world-f.std.com [199.172.62.5]) by sgi04-e.std.com (8.9.3/8.9.3) with ESMTP id RAA8416421 for ; Fri, 20 Apr 2001 17:12:06 -0400 (EDT) Received: from [208.192.102.193] (ppp0c199.std.com [208.192.102.199]) by world.std.com (8.9.3/8.9.3) with ESMTP id RAA14226 for ; Fri, 20 Apr 2001 17:12:04 -0400 (EDT) Mime-Version: 1.0 Message-Id: Date: Fri, 20 Apr 2001 16:59:58 -0400 To: [email protected] From: Keith Dawson Subject: TBTF ping for 2001-04-20: Reviving Content-Type: text/plain; charset="us-ascii" Sender: [email protected] Precedence: list Reply-To: [email protected] -----BEGIN PGP SIGNED MESSAGE----- TBTF ping for 2001-04-20: Reviving T a s t y B i t s f r o m t h e T e c h n o l o g y F r o n t Timely news of the bellwethers in computer and communications technology that will affect electronic commerce -- since 1994 Your Host: Keith Dawson ISSN: 1524-9948 This issue: < http://tbtf.com/archive/2001-04-20.html > To comment on this issue, please use this forum at Quick Topic: < http://www.quicktopic.com/tbtf/H/kQGJR2TXL6H > ________________________________________________________________________ Q u o t e O f T h e M o m e n t Even organizations that promise "privacy for their customers" rarely if ever promise "continued privacy for their former customers..." Once you cancel your account with any business, their promises of keeping the information about their customers private no longer apply... you're not a customer any longer. This is in the large category of business behaviors that individuals would consider immoral and deceptive -- and businesses know are not illegal. -- "_ankh," writing on the XNStalk mailing list ________________________________________________________________________ ..TBTF's long hiatus is drawing to a close Hail subscribers to the TBTF mailing list. Some 2,000 [1] of you have signed up since the last issue [2] was mailed on 2000-07-20. This brief note is the first of several I will send to this list to excise the dead addresses prior to resuming regular publication. While you time the contractions of the newsletter's rebirth, I in- vite you to read the TBTF Log [3] and sign up for its separate free subscription. Send "subscribe" (no quotes) with any subject to [email protected] . I mail out collected Log items on Sun- days. If you need to stay more immediately on top of breaking stories, pick up the TBTF Log's syndication file [4] or read an aggregator that does. Examples are Slashdot's Cheesy Portal [5], Userland [6], and Sitescooper [7]. If your news obsession runs even deeper and you own an SMS-capable cell phone or PDA, sign up on TBTF's WebWire- lessNow portal [8]. A free call will bring you the latest TBTF Log headline, Jargon Scout [9] find, or Siliconium [10]. Two new columnists have bloomed on TBTF since last summer: Ted By- field's roving_reporter [11] and Gary Stock's UnBlinking [12]. Late- ly Byfield has been writing in unmatched depth about ICANN, but the roving_reporter nym's roots are in commentary at the intersection of technology and culture. Stock's UnBlinking latches onto topical sub- jects and pursues them to the ends of the Net. These writers' voices are compelling and utterly distinctive. [1] http://tbtf.com/growth.html [2] http://tbtf.com/archive/2000-07-20.html [3] http://tbtf.com/blog/ [4] http://tbtf.com/tbtf.rdf [5] http://www.slashdot.org/cheesyportal.shtml [6] http://my.userland.com/ [7] http://www.sitescooper.org/ [8] http://tbtf.com/pull-wwn/ [9] http://tbtf.com/jargon-scout.html [10] http://tbtf.com/siliconia.html [11] http://tbtf.com/roving_reporter/ [12] http://tbtf.com/unblinking/ ________________________________________________________________________ S o u r c e s For a complete list of TBTF's email and Web sources, see http://tbtf.com/sources.html . ________________________________________ B e n e f a c t o r s TBTF is free. If you get value from this publication, please visit the TBTF Benefactors page < http://tbtf.com/the-benefactors.html > and consider contributing to its upkeep. ________________________________________________________________________ TBTF home and archive at http://tbtf.com/ . To unsubscribe send the message "unsubscribe" to [email protected]. TBTF is Copy- right 1994-2000 by Keith Dawson, <[email protected]>. Commercial use prohibited. For non-commercial purposes please forward, post, and link as you see fit. _______________________________________________ Keith Dawson [email protected] Layer of ash separates morning and evening milk. -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.2 for non-commercial use http://www.pgp.com iQCVAwUBOuCi3WAMawgf2iXRAQHeAQQA3YSePSQ0XzdHZUVskFDkTfpE9XS4fHQs WaT6a8qLZK9PdNcoz3zggM/Jnjdx6CJqNzxPEtxk9B2DoGll/C/60HWNPN+VujDu Xav65S0P+Px4knaQcCIeCamQJ7uGcsw+CqMpNbxWYaTYmjAfkbKH1EuLC2VRwdmD wQmwrDp70v8= =8hLB -----END PGP SIGNATURE----- ------------=_4BF17E8E.BF8E0000--

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  • Java update/install via group policy

    - by Maximus
    I trying to deploy the latest Java RE version via GP, Java 7 update 9. I want to update computers that are currently running an older version of Java, a mixture of 7.6 and 7.7, some computers are running versions as old as 6.31. Some are running a mixture of both. I would also like this GP to install Java if it's not installed. Previously I used push out Java updates to users machines as Java didn't remove the old version. So when it was done the user would restart their browser or pc to start using the latest version. Not the best way to manage it as it leaves the old version installed but it worked. I've created group policies before for printer deployment, log on drive mapping scripts, but never software deployment. I've extracted the Java MSI and created a transform file to suppress reboot etc using orca. As described on this site http://ivan.dretvic.com/2011/06/how-to-package-and-deploy-java-jre-1-6-0_26-via-group-policy/. I have also tried saving the edited MSI directly and that didn't work either. But it just won't deploy. I have tried to enable logging as suggested on this site http://openofficetechnology.com/node/32, GPO logging via UserEnvDebugLevel, Software deployment logging via AppmgmtDebugLevel and MSI logging, but there is no log C:\Windows\Debug\UserMode\userenv.log being created. The windows event viewer has the following errors: Error 24/10/2012 11:44:04 AM - "Failed to apply changes to software installation settings. Software changes could not be applied. A previous log entry with details should exist. The error was : %%1612" Information 24/10/2012 11:44:04 AM - "The removal of the assignment of application Java 7 Update 9 - FB Java Transform from policy JavaDeploy succeeded." Error 24/10/2012 11:44:04 AM - "The install of application Java 7 Update 9 - FB Java Transform from policy JavaDeploy failed. The error was : %%1612" There is a log created for MSI logging and it's as below. It says the source is invalid but it exists on the share and the PC that I'm testing has permissions and I've included the recommendation here Group Policy installation failed error 1274 to enable "Always wait for the network at computer startup and logon" === Verbose logging started: 24/10/2012 11:43:59 Build type: SHIP UNICODE 5.00.7601.00 Calling process: C:\Windows\system32\svchost.exe === MSI (c) (9C:EC) [11:43:59:898]: Resetting cached policy values MSI (c) (9C:EC) [11:43:59:898]: Machine policy value 'Debug' is 3 MSI (c) (9C:EC) [11:43:59:898]: ******* RunEngine: ******* Product: {26a24ae4-039d-4ca4-87b4-2f83217009ff} ******* Action: ******* CommandLine: ********** MSI (c) (9C:EC) [11:43:59:898]: Client-side and UI is none or basic: Running entire install on the server. MSI (c) (9C:EC) [11:43:59:898]: Grabbed execution mutex. MSI (c) (9C:EC) [11:44:03:431]: Cloaking enabled. MSI (c) (9C:EC) [11:44:03:431]: Attempting to enable all disabled privileges before calling Install on Server MSI (c) (9C:EC) [11:44:03:439]: Incrementing counter to disable shutdown. Counter after increment: 0 MSI (s) (2C:70) [11:44:03:574]: Running installation inside multi-package transaction {26a24ae4-039d-4ca4-87b4-2f83217009ff} MSI (s) (2C:70) [11:44:03:574]: Grabbed execution mutex. MSI (s) (2C:7C) [11:44:03:607]: Resetting cached policy values MSI (s) (2C:7C) [11:44:03:607]: Machine policy value 'Debug' is 3 MSI (s) (2C:7C) [11:44:03:607]: ******* RunEngine: ******* Product: {26a24ae4-039d-4ca4-87b4-2f83217009ff} ******* Action: ******* CommandLine: ********** MSI (s) (2C:7C) [11:44:03:607]: Machine policy value 'DisableUserInstalls' is 0 MSI (s) (2C:7C) [11:44:03:623]: User policy value 'SearchOrder' is 'nmu' MSI (s) (2C:7C) [11:44:03:624]: User policy value 'DisableMedia' is 0 MSI (s) (2C:7C) [11:44:03:624]: Machine policy value 'AllowLockdownMedia' is 0 MSI (s) (2C:7C) [11:44:03:624]: SOURCEMGMT: Media enabled only if package is safe. MSI (s) (2C:7C) [11:44:03:624]: SOURCEMGMT: Looking for sourcelist for product {26a24ae4-039d-4ca4-87b4-2f83217009ff} MSI (s) (2C:7C) [11:44:03:624]: SOURCEMGMT: Adding {26a24ae4-039d-4ca4-87b4-2f83217009ff}; to potential sourcelist list (pcode;disk;relpath). MSI (s) (2C:7C) [11:44:03:624]: SOURCEMGMT: Now checking product {26a24ae4-039d-4ca4-87b4-2f83217009ff} MSI (s) (2C:7C) [11:44:03:624]: SOURCEMGMT: Media is enabled for product. MSI (s) (2C:7C) [11:44:03:624]: SOURCEMGMT: Attempting to use LastUsedSource from source list. MSI (s) (2C:7C) [11:44:03:624]: SOURCEMGMT: Processing net source list. MSI (s) (2C:7C) [11:44:03:624]: SOURCEMGMT: Trying source \\server\share\deployment\Java\stable\x32\. MSI (s) (2C:7C) [11:44:03:650]: Note: 1: 2303 2: 5 3: \\server\share\ MSI (s) (2C:7C) [11:44:03:650]: Note: 1: 1325 2: deployment MSI (s) (2C:7C) [11:44:03:650]: ConnectToSource: CreatePath/CreateFilePath failed with: -2147483648 1325 -2147483648 MSI (s) (2C:7C) [11:44:03:650]: ConnectToSource (con't): CreatePath/CreateFilePath failed with: -2147483648 -2147483648 MSI (s) (2C:7C) [11:44:03:650]: SOURCEMGMT: net source '\\server\share\deployment\Java\stable\x32\' is invalid. MSI (s) (2C:7C) [11:44:03:650]: Note: 1: 1706 2: -2147483647 3: jre1.7.0_09.msi MSI (s) (2C:7C) [11:44:03:650]: SOURCEMGMT: Processing media source list. MSI (s) (2C:7C) [11:44:04:668]: Note: 1: 2203 2: 3: -2147287037 MSI (s) (2C:7C) [11:44:04:668]: SOURCEMGMT: Source is invalid due to missing/inaccessible package. MSI (s) (2C:7C) [11:44:04:668]: Note: 1: 1706 2: -2147483647 3: jre1.7.0_09.msi MSI (s) (2C:7C) [11:44:04:668]: SOURCEMGMT: Processing URL source list. MSI (s) (2C:7C) [11:44:04:668]: Note: 1: 1402 2: UNKNOWN\URL 3: 2 MSI (s) (2C:7C) [11:44:04:668]: Note: 1: 1706 2: -2147483647 3: jre1.7.0_09.msi MSI (s) (2C:7C) [11:44:04:668]: Note: 1: 1706 2: 3: jre1.7.0_09.msi MSI (s) (2C:7C) [11:44:04:668]: SOURCEMGMT: Failed to resolve source MSI (s) (2C:7C) [11:44:04:668]: MainEngineThread is returning 1612 MSI (s) (2C:70) [11:44:04:670]: User policy value 'DisableRollback' is 0 MSI (s) (2C:70) [11:44:04:670]: Machine policy value 'DisableRollback' is 0 MSI (s) (2C:70) [11:44:04:670]: Incrementing counter to disable shutdown. Counter after increment: 0 MSI (s) (2C:70) [11:44:04:670]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts 3: 2 MSI (s) (2C:70) [11:44:04:671]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts 3: 2 MSI (s) (2C:70) [11:44:04:671]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\InProgress 3: 2 MSI (s) (2C:70) [11:44:04:671]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\InProgress 3: 2 MSI (s) (2C:70) [11:44:04:671]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied. Counter after decrement: -1 MSI (s) (2C:70) [11:44:04:671]: Restoring environment variables MSI (c) (9C:EC) [11:44:04:675]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied. Counter after decrement: -1 MSI (c) (9C:EC) [11:44:04:675]: MainEngineThread is returning 1612 === Verbose logging stopped: 24/10/2012 11:44:04 === I'm not sure what my next approach should be. Any help would be much appreciated. Thanks.

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  • Creating and maintaining Orchard translations

    - by Bertrand Le Roy
    Many volunteers have already stepped up to provide translations for Orchard. There are many challenges to overcome with translating such a project. Orchard is a very modular CMS, so the translation mechanism needs to account for the core as well as first and third party modules and themes. Another issue is that every new version of Orchard or of a module changes some localizable strings and adds new ones as others enter obsolescence. In order to address those problems, I've built a small Orchard module that automates some of the most complex tasks that maintaining a translation implies. In this post, I'll walk you through the operations I had to do to update the French translation for Orchard 1.0. In order to make sure you translate all the first party modules, I would recommend that you start from a full source code enlistment. The reason is that I'll show how you can extract the default en-US translation from any source code enlistment. That enables you to create a translation that is even more up-to-date than what is currently on the site. Alternatively, you could start by downloading the current en-US translation. If you decide to do so, just skip the relevant paragraphs. First, let's install the Orchard Translation Manager. I'm starting from a vanilla clone of the latest in the code repository. After you've setup the site, go into the dashboard and click on Gallery. Locate the Orchard Translation Manager in the list of modules and click "Install". Once the module is installed, you need to enable its one feature by going into Configuration/Features and clicking "Enable" next to Vandelay.TranslationManager. We're done with the setup that we need in order to start our translation work. We'll now switch to the command-line and to our favorite text editor. Open a command-line on the Orchard web site folder. I found the easiest way to do this is to do a SHIFT+right-click on the Orchard.Web folder in Windows Explorer and to click "Open command window here". Type bin\orchard to enter the Orchard command-line environment. If you do a "help commands" you should see four commands in the list that came from the module we just installed: extract default translation, install translation, package translation and sync translation. First, we're going to generate the default translation. Note that it is possible to generate that default translation for a specific list of modules and themes by using the /Extensions: switch, which should facilitate the translation of third party extensions, but in this tutorial we're going to generate it for the whole of the Orchard source code. extract default translation /Output:\temp .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } This should have created an Orchard.en-us.po.zip file in the temp directory. Extract that archive into an orchard.po folder under \temp. The next step depends on whether you have an existing translation that you want to update or not. If you do have an existing translation, just extract it into the same \temp\orchard.po directory. That should result in a file structure where you have the default en-US translation alongside your own. If you don't have an existing translation, just continue, the commands will be the same. We are now going to synchronize those translations (or generate the stub for a new one if you didn't start from an existing translation). sync translation /Input:\temp\orchard.po /Culture:fr-FR After this command (where you should of course substitute fr-FR with the culture you're working on), we now have updated files that contain a few useful flags. Open each of the .po files under the culture you are working on (there should be around 36) with your favorite text editor. For all the strings that are still valid in the latest version, nothing changes and you don't need to do anything. For all the strings that disappeared from the default culture, the old translation will still be there but they will be prefixed with the following comment: # Obsolete translation Conveniently, all the obsolete strings will be grouped at the end of the file. You can select all those and delete them. For all the new strings, you will see the following comment: # Untranslated string This is where the hard work begins. You'll need to translate each of those new strings by entering the translation between the quotes in: msgstr "" Don't introduce hard carriage returns in the strings, just stay on one line (your text editor should do some reasonable wrapping so this shouldn't be a big deal). Once you're done with a file, save it. Make sure, and this is very important, that your text editor is saving using the UTF-8 encoding. In Notepad, that setting can be found in the file saving dialog by doing a "Save As" rather than a plain "Save": When all the po files have been edited, you are ready to package the translation for submission (a.k.a. sending e-mail to the localization mailing list). package translation /Culture:fr-FR /Input:\temp\orchard.po /Output:\temp You should now see a Orchard.fr-FR.po.zip file in temp that is ready to be submitted. That is, once you've tested it, which can be done by deploying it into the site: install translation \temp\orchard.fr-fr.po.zip Once this is done you can go into the dashboard under Configuration/Settings and click on "Add or remove supported cultures for the site". Choose your culture and click "Add". You can go back to settings and set the default culture. Save. You may now take a tour of the application and verify that everything works as expected: And that's it really. Creating a translation for Orchard is a matter of a few hours. If you don't see a translation for your culture, please consider creating it.

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  • how to integrate jquery with jsf richfaces tags for print the image and textarea content?

    - by eswaramoorthy-nec
    hi, Here i write code to take printout the textarea content using jquery. I load the two java script (jquery-1.3.2.js and jquery.print.js) But these two source file not support rich:datascroller tag.. That means there is no reaction in datascroller. I need to take print the textarea content and also perfectly work to datascroller also. Here i give jsp and related java files. This code have datatable, rich:datascroller and textarea. Datatable for only used for test the datascroller component. My focus : print the textarea content as well as perfectly work to datascroller component. printer.jsp <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %> <%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %> <%@ taglib uri="http://richfaces.org/a4j" prefix="a4j"%> <%@ taglib uri="http://richfaces.org/rich" prefix="rich"%> <html> <head> <title>Print Viewer </title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <a4j:loadScript src="resource/jquery-1.3.2.js"/> <a4j:loadScript src="resource/jquery.print.js"/> // The problem is : above two loadscript does not support datascroller //componenet. // But that two jquery file for using to take the print. <script type="text/javascript"> function printData() { //Print the Div content for textarea jQuery( ".printable" ).print(); return( false ); } </script> </head> <body> <h:form id="printViewerForm" binding="#{PrintViewer.initForm}"> <rich:panel id="printViewerRichPanel"> <h:panelGrid cellpadding="3" columns="2" id="printPanelGridId" cellspacing="3" border ="1"> <h:panelGrid> //DataScroller for dataTable <rich:datascroller id = "dataScrollerTop" align="center" for= "printDataTable" page="1" maxPages="20"/> <rich:dataTable id="printDataTable" value="#{PrintViewer.printViewerList}" cellpadding="3" rows = "5" rowKeyVar="rowIndex" cellspacing="3" var="printViewerResultListTo"> <f:facet name="header"> <rich:columnGroup> <rich:column> <h:outputText value="PrintTable"/> </rich:column> </rich:columnGroup> </f:facet> <rich:column> <h:outputText value="#{printViewerResultListTo.printName}"/> </rich:column> </rich:dataTable> </h:panelGrid> //Print Content Region <a4j:region id="printContentViewRegion"> <a4j:commandButton id="printButton" value="PrintContent" onclick="printData()"/> <div id="printContentDiv" class="printable"> <h:inputTextarea id="printContentTextArea" style="width:300px;height:300px; value =" This is Sample Jquery For Test working Text Area"/> </div> </a4j:region> </h:panelGrid> </rich:panel> </h:form> </body> PrintViewer.java import java.util.ArrayList; import java.util.List; import javax.faces.component.html.HtmlForm; public class PrintViewer { private HtmlForm initForm; private List printViewerList = new ArrayList(); public HtmlForm getInitForm() { printViewerList = getPrintList(); return initForm; } private List getUploadList() { if (!printViewerList.isEmpty()) { printViewerList.clear(); } printViewerList.add(new PrintViewerResultListTo("print 1")); printViewerList.add(new PrintViewerResultListTo("print 2")); printViewerList.add(new PrintViewerResultListTo("print 3")); printViewerList.add(new PrintViewerResultListTo("print 4")); printViewerList.add(new PrintViewerResultListTo("print 5")); printViewerList.add(new PrintViewerResultListTo("print 6")); printViewerList.add(new PrintViewerResultListTo("print 7")); printViewerList.add(new PrintViewerResultListTo("print 8")); printViewerList.add(new PrintViewerResultListTo("print 9")); printViewerList.add(new PrintViewerResultListTo("print 10")); printViewerList.add(new PrintViewerResultListTo("print 11")); printViewerList.add(new PrintViewerResultListTo("print 12")); printViewerList.add(new PrintViewerResultListTo("print 13")); printViewerList.add(new PrintViewerResultListTo("print 14")); printViewerList.add(new PrintViewerResultListTo("print 15")); return printViewerList; } public void setInitForm(HtmlForm initForm) { this.initForm = initForm; } public List getPrintViewerList() { return printViewerList; } public void setPrintViewerList(List printViewerList) { this.printViewerList = printViewerList; } } PrintViewerResultListTo.java public class PrintViewerResultListTo { private String printName; PrintViewerResultListTo(String printName) { this.printName = printName; } public String getPrintName() { return printName; } public void setPrintName(String printName) { this.printName = printName; } } I hope help me about this. Thanks in advance.

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  • Using ExcelPacke to create Excel sheets on server

    - by DigiMortal
    In one of my community projects I needed to output some listings as Excel file. As installing Excel to server is non-sense that I was easily able to avoid I found simple solution for Excel 2007 files – open-source project called ExcelPackage. In this posting I will show you hot to create simple event attendees report in Excel 2007 format using ExcelPackage. Cautions Although ExcelPackage works well for me here are some things you should be aware of. ExcelPackage needs file system access because compression library it uses is designed so. There is only very old source code available and it is published under GPL. So if you are writing application to your customers then you cannot use this library unless you make your whole application open-source. ExcelPackage has also some technical problems and it is not very easy to use in simple cases. Authors have not provided any new releases since the beginning of 2007 so I have good reason to consider this project as abandoned. You may find the extensive package EPPlus also useful as there are new versions coming over time. EPPlus is also published under GPL (because ExcelPackage is under GPL), so you can use it only on very limited manner. If you don’t afraid some s*itfight with technology and GPL is okay for your system then let’s go on. Exporting event attendees list to Excel Suppose we have list with event attendees and we want to export it to Excel. We are behaving normally and we don’t install Excel desktop software to our web server. Here is the code. void ExportToExcel(Event evt) {     var fileInfo = new FileInfo(Path.GetTempPath() + "\\" +                                  DateTime.Now.Ticks + ".xlsx");       using (var xls = new ExcelPackage(fileInfo))     {         var sheet = xls.Workbook.Worksheets.Add(evt.Title);           sheet.Cell(1, 1).Value = "First name";         sheet.Cell(1, 2).Value = "Last name";         sheet.Cell(1, 3).Value = "E-mail";         sheet.Cell(1, 4).Value = "Phone";         sheet.Cell(1, 5).Value = "Registered";         sheet.Cell(1, 6).Value = "Live Meeting";           var i = 1;         foreach(var attendee in evt.Attendees)         {             i++;               var profile = attendee.Profile;             sheet.Cell(i, 1).Value = profile.FirstName;             sheet.Cell(i, 2).Value = profile.LastName;             sheet.Cell(i, 3).Value = profile.Email;             sheet.Cell(i, 4).Value = profile.Phone;             sheet.Cell(i, 5).Value = att.Created.ToString();             sheet.Cell(i, 6).Value = att.LiveMeeting.ToString();         }           xls.Save();      }       Response.Clear();     Response.ContentType = "application/vnd.openxmlformats";     Response.AddHeader("Content-Disposition",                        "attachment; filename=" + fileInfo.Name);     Response.WriteFile(fileInfo.FullName);     Response.Flush();       if (fileInfo.Exists)         fileInfo.Delete(); } And here is the result. Although it is possible to make this list more effective and nice it works and users can start using it until all the nice bells and whistles are coming. Conclusion After some fighting with technology it was not very hard to get nice Excel 2007 sheets coming out from our server. We used ExcelPackage library to create list of event attendees and our event organizers can now simply download data to Excel if they need to contact with attendees or manage their data using Excel tools.

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  • Fixing a SkyDrive Sync Disaster

    - by Rick Strahl
    For a few months I've been using SkyDrive to handle some basic synching tasks for a number of folders of mine. Specifically I've been dumping a few of my development folders into sky drive so I have a live running backup. It had been working just fine until about a week ago when something went awry. Badly! The idea is that the SkyDrive should sync files, but somewhere in its sync relationship it appears that SkyDrive got confused and assumed it needed to sync back older files to my local machine from the SkyDrive server. So rather than syncing my newer files to the server SkyDrive was pushing older files back to me. Because SkyDrive is so slow actually updating data it's not unusual for SkyDrive to be far behind in syncing and apparently some files were out of date by several months. Of course this is insidious because I didn't notice it for quite some time. I'd been happily working away on my files when a few days ago I noted a bunch of files with -RasXps (my machine name) popping up in various folders. At first I thought my Git repository was giving me a fit, but eventually realized that SkyDrive was actually pushing old files into my monitored folders. To be fair SkyDrive did make backups of the existing files, but by the time I caught it there were literally a few thousand files scattered on my machine that were now updated with old files from online. Here's what some of this looks like: If you look at the directory list you see a bunch of files with a -RasXps postfix appended to them. Those are the files that SkyDrive replaced and backed up on my machine. As you can see the backed up files are actually newer than the ones it pulled from the online SkyDrive. Unless I modified the files after they were updated they all were older than the existing local files. Not exactly how I imagined my synching would work. At first I started cleaning up this mess manually. In most cases the obvious solution was to simply delete the original file and replace with the -RasXps file, but not in all files. Some scrutiny was required and besides being a pain in the ass to rename files, quite frequently I had to dig out Beyond Compare to compare a few files where it wasn't quite clear what's wrong. I quickly realized that doing this by hand would be too hard for the large number of files that got hosed. Hacking together a small .NET Utility So, I figured the easiest way to tackle this is to write a small utility app that shows me all the mangled files that have backups, allows me to compare them and then quickly select and update them, removing the -RasXps file after choosing one of the two files. What I ended up with was a quick and dirty WinForms app that allows me to pick a root folder, and then shows all the -MachineName files: I start by picking a base folder and a template to search for - typically the -MachineName. Clicking Go brings up a list of all files in that folder and its subdirectories.  The list also displays the dates for the saved (-MachineName) file and the current file on disk, along with highlighting for the newer of the two. I can right click on any file and get a context menu pop up to open the folder in Explorer, or open Beyond Compare and view the two files to compare differences which I found very helpful for a number of files where I had modified the files after SkyDrive had updated to an old one. Typically these would be the green files (of which there were thankfully few). To 'fix' files I can select any number of files in the list, then use one of the three buttons on the right to apply an operation. I can use the Saved files - that is the backup file that SkyDrive created with the -MachineName extension (-RasXps above). Or I can use the current file, which is the file with the right name on disk right now and delete the -MachineName file. Or on some occasions I can just opt to delete both of them. For some files like binaries it's often easier to just delete and them be rebuild than choosing. For the most part the process involves accepting the pink files, and checking the few green files and see if any modifications were made since the file was updated incorrectly by SkyDrive. For me luckily those are few in number. Anyways, I thought I share this utility in case anybody else runs into this issue. I've included the VS2012 solution and all the source code so you can see how it works and you can tweak it as needed. The .NET 4.5 binaries are also included if you can't compile. Be warned though!  This rough code is provided as is and makes no guarantees or claims about file safety. All three of the action buttons on the form will delete data. It's a very rough utility and there are no safeguards that ask nicely before deleting files. I highly recommend you make a backup before you have at it. This tools is very narrow in focus, but it might also work with other sync issues from other vendors. I seem to remember that I had similar issues with SugarSync at some point and it too created the -MachineName style files on sync conflicts. Hope this helps somebody out so you can avoid wasting the better part of a full work day on this… Resources Download the Source Code and Binaries for SkyDrive Rescue© Rick Strahl, West Wind Technologies, 2005-2013Posted in Windows  .NET   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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  • Co-Authors Wordpress Plugin: coauthors_wp_list_authors function not working correctly

    - by rayne
    The Co-Authors Plus Plugin for Wordpress has a very annoying bug. The custom function coauthors_wp_list_authors lists authors the same way the wordpress function wp_list_authors does, but it does not include authors in the list who don't have a post of their own - if they have only entries in which they are listed as co-author but not as author, they will not be included in the list. That is of course missing a very important point. I've looked at the faulty SQL statement, but unfortunately my knowledge of advanced SQL, especially when it comes to JOINs, as well as my knowledge of the wp database structure is too limited and I remain clueless. There is a topic in the WP support forum, but unfortunately the information there is very outdated and the fix is not applicable anymore. I couldn't find any other, more current solutions on the internet. I'd be glad if somewhere here could help fix the SQL statement so it also lists co-authors who don't have posts where they're the sole author, as well as display the correct post count for all authors. Here's the entire function for reference purposes with a comment marking the SQL statement: function coauthors_wp_list_authors($args = '') { global $wpdb, $coauthors_plus; $defaults = array( 'optioncount' => false, 'exclude_admin' => true, 'show_fullname' => false, 'hide_empty' => true, 'feed' => '', 'feed_image' => '', 'feed_type' => '', 'echo' => true, 'style' => 'list', 'html' => true ); $r = wp_parse_args( $args, $defaults ); extract($r, EXTR_SKIP); $return = ''; $authors = $wpdb->get_results("SELECT ID, user_nicename from $wpdb->users " . ($exclude_admin ? "WHERE user_login <> 'admin' " : '') . "ORDER BY display_name"); $author_count = array(); # this is the SQL statement which doesn't work correctly: $query = "SELECT DISTINCT $wpdb->users.ID AS post_author, $wpdb->terms.name AS user_name, $wpdb->term_taxonomy.count AS count"; $query .= " FROM $wpdb->posts"; $query .= " INNER JOIN $wpdb->term_relationships ON ($wpdb->posts.ID = $wpdb->term_relationships.object_id)"; $query .= " INNER JOIN $wpdb->term_taxonomy ON ($wpdb->term_relationships.term_taxonomy_id = $wpdb->term_taxonomy.term_taxonomy_id)"; $query .= " INNER JOIN $wpdb->terms ON ($wpdb->term_taxonomy.term_id = $wpdb->terms.term_id)"; $query .= " INNER JOIN $wpdb->users ON ($wpdb->terms.name = $wpdb->users.user_login)"; $query .= " WHERE post_type = 'post' AND " . get_private_posts_cap_sql( 'post' ); $query .= " AND $wpdb->term_taxonomy.taxonomy = '$coauthors_plus->coauthor_taxonomy'"; $query .= " GROUP BY post_author"; foreach ((array) $wpdb->get_results($query) as $row) { $author_count[$row->post_author] = $row->count; } foreach ( (array) $authors as $author ) { $link = ''; $author = get_userdata( $author->ID ); $posts = (isset($author_count[$author->ID])) ? $author_count[$author->ID] : 0; $name = $author->display_name; if ( $show_fullname && ($author->first_name != '' && $author->last_name != '') ) $name = "$author->first_name $author->last_name"; if( !$html ) { if ( $posts == 0 ) { if ( ! $hide_empty ) $return .= $name . ', '; } else $return .= $name . ', '; continue; } if ( !($posts == 0 && $hide_empty) && 'list' == $style ) $return .= '<li>'; if ( $posts == 0 ) { if ( ! $hide_empty ) $link = $name; } else { $link = '<a href="' . get_author_posts_url($author->ID, $author->user_nicename) . '" title="' . esc_attr( sprintf(__("Posts by %s", 'co-authors-plus'), $author->display_name) ) . '">' . $name . '</a>'; if ( (! empty($feed_image)) || (! empty($feed)) ) { $link .= ' '; if (empty($feed_image)) $link .= '('; $link .= '<a href="' . get_author_feed_link($author->ID) . '"'; if ( !empty($feed) ) { $title = ' title="' . esc_attr($feed) . '"'; $alt = ' alt="' . esc_attr($feed) . '"'; $name = $feed; $link .= $title; } $link .= '>'; if ( !empty($feed_image) ) $link .= "<img src=\"" . esc_url($feed_image) . "\" style=\"border: none;\"$alt$title" . ' />'; else $link .= $name; $link .= '</a>'; if ( empty($feed_image) ) $link .= ')'; } if ( $optioncount ) $link .= ' ('. $posts . ')'; } if ( !($posts == 0 && $hide_empty) && 'list' == $style ) $return .= $link . '</li>'; else if ( ! $hide_empty ) $return .= $link . ', '; } $return = trim($return, ', '); if ( ! $echo ) return $return; echo $return; }

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  • Generate Strongly Typed Observable Events for the Reactive Extensions for .NET (Rx)

    - by Bobby Diaz
    I must have tried reading through the various explanations and introductions to the new Reactive Extensions for .NET before the concepts finally started sinking in.  The article that gave me the ah-ha moment was over on SilverlightShow.net and titled Using Reactive Extensions in Silverlight.  The author did a good job comparing the "normal" way of handling events vs. the new "reactive" methods. Admittedly, I still have more to learn about the Rx Framework, but I wanted to put together a sample project so I could start playing with the new Observable and IObservable<T> constructs.  I decided to throw together a whiteboard application in Silverlight based on the Drawing with Rx example on the aforementioned article.  At the very least, I figured I would learn a thing or two about a new technology, but my real goal is to create a fun application that I can share with the kids since they love drawing and coloring so much! Here is the code sample that I borrowed from the article: var mouseMoveEvent = Observable.FromEvent<MouseEventArgs>(this, "MouseMove"); var mouseLeftButtonDown = Observable.FromEvent<MouseButtonEventArgs>(this, "MouseLeftButtonDown"); var mouseLeftButtonUp = Observable.FromEvent<MouseButtonEventArgs>(this, "MouseLeftButtonUp");       var draggingEvents = from pos in mouseMoveEvent                              .SkipUntil(mouseLeftButtonDown)                              .TakeUntil(mouseLeftButtonUp)                              .Let(mm => mm.Zip(mm.Skip(1), (prev, cur) =>                                  new                                  {                                      X2 = cur.EventArgs.GetPosition(this).X,                                      X1 = prev.EventArgs.GetPosition(this).X,                                      Y2 = cur.EventArgs.GetPosition(this).Y,                                      Y1 = prev.EventArgs.GetPosition(this).Y                                  })).Repeat()                          select pos;       draggingEvents.Subscribe(p =>     {         Line line = new Line();         line.Stroke = new SolidColorBrush(Colors.Black);         line.StrokeEndLineCap = PenLineCap.Round;         line.StrokeLineJoin = PenLineJoin.Round;         line.StrokeThickness = 5;         line.X1 = p.X1;         line.Y1 = p.Y1;         line.X2 = p.X2;         line.Y2 = p.Y2;         this.LayoutRoot.Children.Add(line);     }); One thing that was nagging at the back of my mind was having to deal with the event names as strings, as well as the verbose syntax for the Observable.FromEvent<TEventArgs>() method.  I came up with a couple of static/helper classes to resolve both issues and also created a T4 template to auto-generate these helpers for any .NET type.  Take the following code from the above example: var mouseMoveEvent = Observable.FromEvent<MouseEventArgs>(this, "MouseMove"); var mouseLeftButtonDown = Observable.FromEvent<MouseButtonEventArgs>(this, "MouseLeftButtonDown"); var mouseLeftButtonUp = Observable.FromEvent<MouseButtonEventArgs>(this, "MouseLeftButtonUp"); Turns into this with the new static Events class: var mouseMoveEvent = Events.Mouse.Move.On(this); var mouseLeftButtonDown = Events.Mouse.LeftButtonDown.On(this); var mouseLeftButtonUp = Events.Mouse.LeftButtonUp.On(this); Or better yet, just remove the variable declarations altogether:     var draggingEvents = from pos in Events.Mouse.Move.On(this)                              .SkipUntil(Events.Mouse.LeftButtonDown.On(this))                              .TakeUntil(Events.Mouse.LeftButtonUp.On(this))                              .Let(mm => mm.Zip(mm.Skip(1), (prev, cur) =>                                  new                                  {                                      X2 = cur.EventArgs.GetPosition(this).X,                                      X1 = prev.EventArgs.GetPosition(this).X,                                      Y2 = cur.EventArgs.GetPosition(this).Y,                                      Y1 = prev.EventArgs.GetPosition(this).Y                                  })).Repeat()                          select pos; The Move, LeftButtonDown and LeftButtonUp members of the Events.Mouse class are readonly instances of the ObservableEvent<TTarget, TEventArgs> class that provide type-safe access to the events via the On() method.  Here is the code for the class: using System; using System.Collections.Generic; using System.Linq;   namespace System.Linq {     /// <summary>     /// Represents an event that can be managed via the <see cref="Observable"/> API.     /// </summary>     /// <typeparam name="TTarget">The type of the target.</typeparam>     /// <typeparam name="TEventArgs">The type of the event args.</typeparam>     public class ObservableEvent<TTarget, TEventArgs> where TEventArgs : EventArgs     {         /// <summary>         /// Initializes a new instance of the <see cref="ObservableEvent"/> class.         /// </summary>         /// <param name="eventName">Name of the event.</param>         protected ObservableEvent(String eventName)         {             EventName = eventName;         }           /// <summary>         /// Registers the specified event name.         /// </summary>         /// <param name="eventName">Name of the event.</param>         /// <returns></returns>         public static ObservableEvent<TTarget, TEventArgs> Register(String eventName)         {             return new ObservableEvent<TTarget, TEventArgs>(eventName);         }           /// <summary>         /// Creates an enumerable sequence of event values for the specified target.         /// </summary>         /// <param name="target">The target.</param>         /// <returns></returns>         public IObservable<IEvent<TEventArgs>> On(TTarget target)         {             return Observable.FromEvent<TEventArgs>(target, EventName);         }           /// <summary>         /// Gets or sets the name of the event.         /// </summary>         /// <value>The name of the event.</value>         public string EventName { get; private set; }     } } And this is how it's used:     /// <summary>     /// Categorizes <see cref="ObservableEvents"/> by class and/or functionality.     /// </summary>     public static partial class Events     {         /// <summary>         /// Implements a set of predefined <see cref="ObservableEvent"/>s         /// for the <see cref="System.Windows.System.Windows.UIElement"/> class         /// that represent mouse related events.         /// </summary>         public static partial class Mouse         {             /// <summary>Represents the MouseMove event.</summary>             public static readonly ObservableEvent<UIElement, MouseEventArgs> Move =                 ObservableEvent<UIElement, MouseEventArgs>.Register("MouseMove");               // additional members omitted...         }     } The source code contains a static Events class with prefedined members for various categories (Key, Mouse, etc.).  There is also an Events.tt template that you can customize to generate additional event categories for any .NET type.  All you should have to do is add the name of your class to the types collection near the top of the template:     types = new Dictionary<String, Type>()     {         //{ "Microsoft.Maps.MapControl.Map, Microsoft.Maps.MapControl", null }         { "System.Windows.FrameworkElement, System.Windows", null },         { "Whiteboard.MainPage, Whiteboard", null }     }; The template is also a bit rough at this point, but at least it generates code that *should* compile.  Please let me know if you run into any issues with it.  Some people have reported errors when trying to use T4 templates within a Silverlight project, but I was able to get it to work with a little black magic...  You can download the source code for this project or play around with the live demo.  Just be warned that it is at a very early stage so don't expect to find much today.  I plan on adding alot more options like pen colors and sizes, saving, printing, etc. as time permits.  HINT: hold down the ESC key to erase! Enjoy! Additional Resources Using Reactive Extensions in Silverlight DevLabs: Reactive Extensions for .NET (Rx) Rx Framework Part III - LINQ to Events - Generating GetEventName() Wrapper Methods using T4

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  • Feedback on IE9 developer tool

    - by anirudha
    if you already love IE9 this post really not for you. but still you need something more this post for you and want to know about IE9 why not use product guide they give you IE9 product guide well i already put the bad experience into many post here but a little practice more to show what IE9 actually is or what they show. well i believe that their is no one on MSDN can sure that IE9 is another thing for developer to struggle with. because they never thing about the thing they make. the thinking they have that we product windows who are best so everything we do are best and best. come to the point i means Web browsing we can divide them in two parts 1. someone who are developer and use browser mainly for development , debugging and testing what they produced and make better software. 2. user who are not know things more technically but use the web as their passion. so as a developer what developer want. are IE9 is really for developer now make a comparison. commonly every developer have a twitter account to follow the link of someone else to learn and read the best article on web and share to all follower of themselves. chrome and Firefox have many utilities for that but IE still have nothing. social networking is a good way to communicate with others. in IE their is no plug-in to make experience better as firefox and chrome have a list of plug-in to use browser with more comfort. their are a huge list of plug-in on Firefox and chrome is available for making experience better. but IE9 still have no plug-in for that. if you see http://ieaddons.com/ you still see that they are joking yeah white joke who believe on them. they still have no plug-in. are they fool or making other fool. on 2011 whenever Firefox and chrome claim many thing on the plug-in IE9 still have no plug-in. not for developer not for everyone else. yeah a list of useless stuff you can see their. IE9 developer tool maybe better if they copycat the firebug as they copycat Google’s search result for Bing. well it’ not sure but Google claim that. but what is in IE9 developer tool so great that MSDN developer talking about. i found nothing in IE9 developer tool still feel frustrated their is a big trouble to edit css. means you never can change the css without going to CSS tab. but i thing great many thing they make better their but they still produce not better option in IE9 developer tool. as a comparison firebug is great we all know but chrome is a good option if someone want to try their hands on new things. in firebug their is a list of plugin inside firebug available also to make task easier. like firepicker in firebug make colorpicking easier. firebug autocomplete make console script writing better and yslow show you the performance step you need to take for making site better. IE9 still have no plugin or that. IE9 maybe useful stuff whenever the interface they thing to make better. the problem with MSFT these days that they want to ship next version of every softare in WPF. yeah they make live 2011 in wpf. many of user go for someone else or downgrade their 2011 live. the problem they have that they never want to spent the time on learning to use a software again. IE9 not have the serius problem like live have but still IE9 is not so great as chrome. like in chrome their is smooth tabbing. IE9 ditto copycat the things for tabbing. but a little step more in IE have a problem that IE9 tab slip whenever you want to use them. in chrome never slip the tab without user want. well as user someone also want to paint their browser in the style they want or like. in firefox the sollution called personas or themes. same in chrome the things called themes but in IE they still believe that their is no need for them. means use same themes everytime no customization in 2011 yeah great joke. well i read a post [written in 2008] of developer who still claim that they never used Firefox because they have a license for visual studio and some other software and have IE in their system. i not what they want to show. means they always want or thing to show that firefox and chrome is pity and IE is great as all do. but what’s true we all know. when MSFT release IE9 RC they show the ads with comparison of IE9 RC with chrome6 but why not today with chrome 11 developer version. the many things on IE testdrive now work perfect on chrome. well what’s performance matter when a silly browser never give a better experience. yeah performance have matter in useful software. anyone can prove many things whenever they produce a featureless software. well IE9 is looking great in blogger’s post on many kind of website where developer not independently write. actually they are mentally forced to write for IE9 better and show blah blah even blah is very small as they show. i am not believe on some blogger when they write in a style who are easily known that the post in favor of IE9. if you thing of mine then i am not want to hide myself i am one of the lover of open source so i love Firefox and chrome both. but i am not wrong you find yourself that what is difference between IE9 and Firefox and chrome. so don’t believe on someone who are not mentally independent because most of them are write about IE9 because they want to show them better they are forced themselves to show IE9 as a tool and chrome and firefox as pity. well read everything but never believe on everyone without any confident of them. they actually all want to show the things they have as i have with chrome and firefox is better then IE9. so my feedback on IE9 is :- without any plugin , customization or many thing i described in the post make no sense of use of IE9. i still fall in love of firefox and chrome they both give a better support and things to make experience better on the web. so conclusion is that i not forced you to other not IE9. you need to use the tool who save your time. means if your IE9 save your time you should use them because time was more subjective then others. so use the software who save the time as i save my time in chrome and in firefox. i still found nothing inIE9 who save time of mine.

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  • TFS 2010 SDK: Smart Merge - Programmatically Create your own Merge Tool

    - by Tarun Arora
    Technorati Tags: Team Foundation Server 2010,TFS SDK,TFS API,TFS Merge Programmatically,TFS Work Items Programmatically,TFS Administration Console,ALM   The information available in the Merge window in Team Foundation Server 2010 is very important in the decision making during the merging process. However, at present the merge window shows very limited information, more that often you are interested to know the work item, files modified, code reviewer notes, policies overridden, etc associated with the change set. Our friends at Microsoft are working hard to change the game again with vNext, but because at present the merge window is a model window you have to cancel the merge process and go back one after the other to check the additional information you need. If you can relate to what i am saying, you will enjoy this blog post! I will show you how to programmatically create your own merging window using the TFS 2010 API. A few screen shots of the WPF TFS 2010 API – Custom Merging Application that we will be creating programmatically, Excited??? Let’s start coding… 1. Get All Team Project Collections for the TFS Server You can read more on connecting to TFS programmatically on my blog post => How to connect to TFS Programmatically 1: public static ReadOnlyCollection<CatalogNode> GetAllTeamProjectCollections() 2: { 3: TfsConfigurationServer configurationServer = 4: TfsConfigurationServerFactory. 5: GetConfigurationServer(new Uri("http://xxx:8080/tfs/")); 6: 7: CatalogNode catalogNode = configurationServer.CatalogNode; 8: return catalogNode.QueryChildren(new Guid[] 9: { CatalogResourceTypes.ProjectCollection }, 10: false, CatalogQueryOptions.None); 11: } 2. Get All Team Projects for the selected Team Project Collection You can read more on connecting to TFS programmatically on my blog post => How to connect to TFS Programmatically 1: public static ReadOnlyCollection<CatalogNode> GetTeamProjects(string instanceId) 2: { 3: ReadOnlyCollection<CatalogNode> teamProjects = null; 4: 5: TfsConfigurationServer configurationServer = 6: TfsConfigurationServerFactory.GetConfigurationServer(new Uri("http://xxx:8080/tfs/")); 7: 8: CatalogNode catalogNode = configurationServer.CatalogNode; 9: var teamProjectCollections = catalogNode.QueryChildren(new Guid[] {CatalogResourceTypes.ProjectCollection }, 10: false, CatalogQueryOptions.None); 11: 12: foreach (var teamProjectCollection in teamProjectCollections) 13: { 14: if (string.Compare(teamProjectCollection.Resource.Properties["InstanceId"], instanceId, true) == 0) 15: { 16: teamProjects = teamProjectCollection.QueryChildren(new Guid[] { CatalogResourceTypes.TeamProject }, false, 17: CatalogQueryOptions.None); 18: } 19: } 20: 21: return teamProjects; 22: } 3. Get All Branches with in a Team Project programmatically I will be passing the name of the Team Project for which i want to retrieve all the branches. When consuming the ‘Version Control Service’ you have the method QueryRootBranchObjects, you need to pass the recursion type => none, one, full. Full implies you are interested in all branches under that root branch. 1: public static List<BranchObject> GetParentBranch(string projectName) 2: { 3: var branches = new List<BranchObject>(); 4: 5: var tfs = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(new Uri("http://<ServerName>:8080/tfs/<teamProjectName>")); 6: var versionControl = tfs.GetService<VersionControlServer>(); 7: 8: var allBranches = versionControl.QueryRootBranchObjects(RecursionType.Full); 9: 10: foreach (var branchObject in allBranches) 11: { 12: if (branchObject.Properties.RootItem.Item.ToUpper().Contains(projectName.ToUpper())) 13: { 14: branches.Add(branchObject); 15: } 16: } 17: 18: return branches; 19: } 4. Get All Branches associated to the Parent Branch Programmatically Now that we have the parent branch, it is important to retrieve all child branches of that parent branch. Lets see how we can achieve this using the TFS API. 1: public static List<ItemIdentifier> GetChildBranch(string parentBranch) 2: { 3: var branches = new List<ItemIdentifier>(); 4: 5: var tfs = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(new Uri("http://<ServerName>:8080/tfs/<CollectionName>")); 6: var versionControl = tfs.GetService<VersionControlServer>(); 7: 8: var i = new ItemIdentifier(parentBranch); 9: var allBranches = 10: versionControl.QueryBranchObjects(i, RecursionType.None); 11: 12: foreach (var branchObject in allBranches) 13: { 14: foreach (var childBranche in branchObject.ChildBranches) 15: { 16: branches.Add(childBranche); 17: } 18: } 19: 20: return branches; 21: } 5. Get Merge candidates between two branches Programmatically Now that we have the parent and the child branch that we are interested to perform a merge between we will use the method ‘GetMergeCandidates’ in the namespace ‘Microsoft.TeamFoundation.VersionControl.Client’ => http://msdn.microsoft.com/en-us/library/bb138934(v=VS.100).aspx 1: public static MergeCandidate[] GetMergeCandidates(string fromBranch, string toBranch) 2: { 3: var tfs = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(new Uri("http://<ServerName>:8080/tfs/<CollectionName>")); 4: var versionControl = tfs.GetService<VersionControlServer>(); 5: 6: return versionControl.GetMergeCandidates(fromBranch, toBranch, RecursionType.Full); 7: } 6. Get changeset details Programatically Now that we have the changeset id that we are interested in, we can get details of the changeset. The Changeset object contains the properties => http://msdn.microsoft.com/en-us/library/microsoft.teamfoundation.versioncontrol.client.changeset.aspx - Changes: Gets or sets an array of Change objects that comprise this changeset. - CheckinNote: Gets or sets the check-in note of the changeset. - Comment: Gets or sets the comment of the changeset. - PolicyOverride: Gets or sets the policy override information of this changeset. - WorkItems: Gets an array of work items that are associated with this changeset. 1: public static Changeset GetChangeSetDetails(int changeSetId) 2: { 3: var tfs = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(new Uri("http://<ServerName>:8080/tfs/<CollectionName>")); 4: var versionControl = tfs.GetService<VersionControlServer>(); 5: 6: return versionControl.GetChangeset(changeSetId); 7: } 7. Possibilities In future posts i will try and extend this idea to explore further possibilities, but few features that i am sure will further help during the merge decision making process would be, - View changed files - Compare modified file with current/previous version - Merge Preview - Last Merge date Any other features that you can think of?

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  • Using the BAM Interceptor with Continuation

    - by Charles Young
    Originally posted on: http://geekswithblogs.net/cyoung/archive/2014/06/02/using-the-bam-interceptor-with-continuation.aspxI’ve recently been resurrecting some code written several years ago that makes extensive use of the BAM Interceptor provided as part of BizTalk Server’s BAM event observation library.  In doing this, I noticed an issue with continuations.  Essentially, whenever I tried to configure one or more continuations for an activity, the BAM Interceptor failed to complete the activity correctly.   Careful inspection of my code confirmed that I was initializing and invoking the BAM interceptor correctly, so I was mystified.  However, I eventually found the problem.  It is a logical error in the BAM Interceptor code itself. The BAM Interceptor provides a useful mechanism for implementing dynamic tracking.  It supports configurable ‘track points’.  These are grouped into named ‘locations’.  BAM uses the term ‘step’ as a synonym for ‘location’.   Each track point defines a BAM action such as starting an activity, extracting a data item, enabling a continuation, etc.  Each step defines a collection of track points. Understanding Steps The BAM Interceptor provides an abstract model for handling configuration of steps.  It doesn’t, however, define any specific configuration mechanism (e.g., config files, SSO, etc.)  It is up to the developer to decide how to store, manage and retrieve configuration data.  At run time, this configuration is used to register track points which then drive the BAM Interceptor. The full semantics of a step are not immediately clear from Microsoft’s documentation.  They represent a point in a business activity where BAM tracking occurs.  They are named locations in the code.  What is less obvious is that they always represent either the full tracking work for a given activity or a discrete fragment of that work which commences with the start of a new activity or the continuation of an existing activity.  The BAM Interceptor enforces this by throwing an error if no ‘start new’ or ‘continue’ track point is registered for a named location. This constraint implies that each step must marked with an ‘end activity’ track point.  One of the peculiarities of BAM semantics is that when an activity is continued under a correlated ID, you must first mark the current activity as ‘ended’ in order to ensure the right housekeeping is done in the database.  If you re-start an ended activity under the same ID, you will leave the BAM import tables in an inconsistent state.  A step, therefore, always represents an entire unit of work for a given activity or continuation ID.  For activities with continuation, each unit of work is termed a ‘fragment’. Instance and Fragment State Internally, the BAM Interceptor maintains state data at two levels.  First, it represents the overall state of the activity using a ‘trace instance’ token.  This token contains the name and ID of the activity together with a couple of state flags.  The second level of state represents a ‘trace fragment’.   As we have seen, a fragment of an activity corresponds directly to the notion of a ‘step’.  It is the unit of work done at a named location, and it must be bounded by start and end, or continue and end, actions. When handling continuations, the BAM Interceptor differentiates between ‘root’ fragments and other fragments.  Very simply, a root fragment represents the start of an activity.  Other fragments represent continuations.  This is where the logic breaks down.  The BAM Interceptor loses state integrity for root fragments when continuations are defined. Initialization Microsoft’s BAM Interceptor code supports the initialization of BAM Interceptors from track point configuration data.  The process starts by populating an Activity Interceptor Configuration object with an array of track points.  These can belong to different steps (aka ‘locations’) and can be registered in any order.  Once it is populated with track points, the Activity Interceptor Configuration is used to initialise the BAM Interceptor.  The BAM Interceptor sets up a hash table of array lists.  Each step is represented by an array list, and each array list contains an ordered set of track points.  The BAM Interceptor represents track points as ‘executable’ components.  When the OnStep method of the BAM Interceptor is called for a given step, the corresponding list of track points is retrieved and each track point is executed in turn.  Each track point retrieves any required data using a call back mechanism and then serializes a BAM trace fragment object representing a specific action (e.g., start, update, enable continuation, stop, etc.).  The serialised trace fragment is then handed off to a BAM event stream (buffered or direct) which takes the appropriate action. The Root of the Problem The logic breaks down in the Activity Interceptor Configuration.  Each Activity Interceptor Configuration is initialised with an instance of a ‘trace instance’ token.  This provides the basic metadata for the activity as a whole.  It contains the activity name and ID together with state flags indicating if the activity ID is a root (i.e., not a continuation fragment) and if it is completed.  This single token is then shared by all trace actions for all steps registered with the Activity Interceptor Configuration. Each trace instance token is automatically initialised to represent a root fragment.  However, if you subsequently register a ‘continuation’ step with the Activity Interceptor Configuration, the ‘root’ flag is set to false at the point the ‘continue’ track point is registered for that step.   If you use a ‘reflector’ tool to inspect the code for the ActivityInterceptorConfiguration class, you can see the flag being set in one of the overloads of the RegisterContinue method.    This makes no sense.  The trace instance token is shared across all the track points registered with the Activity Interceptor Configuration.  The Activity Interceptor Configuration is designed to hold track points for multiple steps.  The ‘root’ flag is clearly meant to be initialised to ‘true’ for the preliminary root fragment and then subsequently set to false at the point that a continuation step is processed.  Instead, if the Activity Interceptor Configuration contains a continuation step, it is changed to ‘false’ before the root fragment is processed.  This is clearly an error in logic. The problem causes havoc when the BAM Interceptor is used with continuation.  Effectively the root step is no longer processed correctly, and the ultimate effect is that the continued activity never completes!   This has nothing to do with the root and the continuation being in the same process.  It is due to a fundamental mistake of setting the ‘root’ flag to false for a continuation before the root fragment is processed. The Workaround Fortunately, it is easy to work around the bug.  The trick is to ensure that you create a new Activity Interceptor Configuration object for each individual step.  This may mean filtering your configuration data to extract the track points for a single step or grouping the configured track points into individual steps and the creating a separate Activity Interceptor Configuration for each group.  In my case, the first approach was required.  Here is what the amended code looks like: // Because of a logic error in Microsoft's code, a separate ActivityInterceptorConfiguration must be used // for each location. The following code extracts only those track points for a given step name (location). var trackPointGroup = from ResolutionService.TrackPoint tp in bamActivity.TrackPoints                       where (string)tp.Location == bamStepName                       select tp; var bamActivityInterceptorConfig =     new Microsoft.BizTalk.Bam.EventObservation.ActivityInterceptorConfiguration(activityName); foreach (var trackPoint in trackPointGroup) {     switch (trackPoint.Type)     {         case TrackPointType.Start:             bamActivityInterceptorConfig.RegisterStartNew(trackPoint.Location, trackPoint.ExtractionInfo);             break; etc… I’m using LINQ to filter a list of track points for those entries that correspond to a given step and then registering only those track points on a new instance of the ActivityInterceptorConfiguration class.   As soon as I re-wrote the code to do this, activities with continuations started to complete correctly.

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  • JSF 2.0: java based custom component + html table + facelets = data model not updated

    - by mikic
    Hi, I'm having problems getting the data model of a HtmlDataTable to be correctly updated by JSF 2.0 and Facelets. I have created a custom Java-based component that extends HtmlDataTable and dynamically adds columns in the encodeBegin method. @Override public void encodeBegin(FacesContext context) throws IOException { if (this.findComponent("c0") == null) { for (int i = 0; i < 3; i++) { HtmlColumn myNewCol = new HtmlColumn(); myNewCol.setId("c" + i); HtmlInputText myNewText = new HtmlInputText(); myNewText.setId("t" + i); myNewText.setValue("#{row[" + i + "]}"); myNewCol.getChildren().add(myNewText); this.getChildren().add(myNewCol); } } super.encodeBegin(context); } My test page contains the following <h:form id="fromtb"> <test:MatrixTest id="tb" var="row" value="#{MyManagedBean.model}"> </test:MatrixTest> <h:commandButton id="btn" value="Set" action="#{MyManagedBean.mergeInput}"/> </h:form> <h:outputText id="mergedInput" value="#{MyManagedBean.mergedInput}"/> My managed bean class contains the following @ManagedBean(name="MyManagedBean") @SessionScoped public class MyManagedBean { private List model = null; private String mergedInput = null; public MyManagedBean() { model = new ArrayList(); List myFirst = new ArrayList(); myFirst.add(""); myFirst.add(""); myFirst.add(""); model.add(myFirst); List mySecond = new ArrayList(); mySecond.add(""); mySecond.add(""); mySecond.add(""); model.add(mySecond); } public String mergeInput() { StringBuffer myMergedInput = new StringBuffer(); for (Object object : model) { myMergedInput.append(object); } setMergedInput(myMergedInput.toString()); return null; } public List getModel() { return model; } public void setModel(List model) { this.model = model; } public String getMergedInput() { return mergedInput; } public void setMergedInput(String mergedInput) { this.mergedInput = mergedInput; } When invoked, the page is correctly rendered with a table made of 3 columns (added at runtime) and 2 rows (as my data model has 2 rows). However when the user enter some data in the input fields and then click the submit button, the model is not correctly updated and therefore the mergeInput() method creates a sequence of empty strings which is rendered on the same page. I have added some logging to the decode() method of my custom component and I can see that the parameters entered by the user are being posted back with the request, however these parameters are not used to update the data model. If I update the encodeBegin() method of my custom component as follow @Override public void encodeBegin(FacesContext context) throws IOException { super.encodeBegin(context); } and I update the test page as follow <test:MatrixTest id="tb" var="row" value="#{MyManagedBean.model}"> <h:column id="c0"><h:inputText id="t0" value="#{row[0]}"/></h:column> <h:column id="c1"><h:inputText id="t1" value="#{row[1]}"/></h:column> <h:column id="c2"><h:inputText id="t2" value="#{row[2]}"/></h:column> </test:MatrixTest> the page is correctly rendered and this time when the user enters data and submits the form, the underlying data model is correctly updated and the mergeInput() method creates a sequence of strings with the user data. Why does the test case with columns declared in the facelet page works correctly (ie the data model is correctly updated by JSF) where the same does not happen when the columns are created at runtime using the encodeBegin() method? Is there any method I need to invoke or interface I need to extend in order to ensure the data model is correctly updated? I am using this test case to address the issue that is appearing in a much more complex component, therefore I can't achieve the same functionality using a facelet composite component. Please note that this has been done using NetBeans 6.8, JRE 1.6.0u18, GlassFish 3.0. Thanks for your help.

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  • null values from listbox, are not evaluated in the model binding of ASP.NET-MVC

    - by Jorge
    The model validation doesn't evaluates the attributes linked to listbox values if you don't select at least one of them. This way is not possible to do a model evaluation using DataAnnotations in order to inform required values. The controller: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using TestValidation.Models; namespace TestValidation.Controllers { [HandleError] public class HomeController : Controller { private SelectList list = new SelectList(new List<string>() { "Sao Paulo", "Toronto", "New York", "Vancouver" }); public ActionResult Index() { ViewData["ModelState"] = "NOT EVAL"; ViewData["ItemsList"] = list; return View(); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult Index(MyEntity entity) { if (ModelState.IsValid) { ViewData["ModelState"] = "VALID"; } else { ViewData["ModelState"] = "NOT VALID!!!"; } ViewData["ItemsList"] = list; return View(); } public ActionResult About() { return View(); } } } The View: <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<TestValidation.Models.MyEntity>" %> <asp:Content ID="indexTitle" ContentPlaceHolderID="TitleContent" runat="server"> Home Page </asp:Content> <asp:Content ID="indexContent" ContentPlaceHolderID="MainContent" runat="server"> <h2> Validation Test</h2> <p> <% using (Html.BeginForm()) {%> <fieldset> <p> ModelState: <%= Html.Encode((string)ViewData["ModelState"])%> </p> <p> <label for="Name"> Name:</label> <%= Html.TextBoxFor(m => m.Name)%> <%= Html.ValidationMessageFor(m => m.Name)%> </p> <p> <label for="ItemFromList"> Items (list):</label> <%= Html.ListBoxFor(m => m.ItemFromList, ViewData["ItemsList"] as SelectList)%> <%= Html.ValidationMessageFor(m => m.ItemFromList)%> </p> <p> <label for="ItemFromCombo"> Items (combo):</label> <%= Html.DropDownListFor(m => m.ItemFromCombo, ViewData["ItemsList"] as SelectList)%> <%= Html.ValidationMessageFor(m => m.ItemFromCombo)%> </p> <p> <input type="submit" value="Submit" /> </p> </fieldset> <% } %> </asp:Content> The Model: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.ComponentModel.DataAnnotations; namespace TestValidation.Models { public class MyEntity_Validate : ValidationAttribute { public MyEntity_Validate() { this.ErrorMessage = "Validated!. Is <> Toronto"; } public override bool IsValid(object value) { return ((string)value == "Toronto"); } } public class MyEntity { [Required] public string Name { get; set; } [MyEntity_Validate] public string ItemFromList { get; set; } [MyEntity_Validate] public string ItemFromCombo { get; set; } } } Any help would be very much appreciated. Thank you.

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  • XNA 2D Collision with specific tiles

    - by zenzero
    I am new to game programming and to these sites for help. I am making a 2D game but I can't seem to get the collision between my character and certain tiles. I have a map filled with grass tiles and water tiles and I want to keep my character from walking on the water tiles. I have a Tiles class that I use so that the tiles are objects and also has the collision method in it, a TileEngine class used create the map and it also holds a list of Tiles, and the class James which is for my character. I also have a Camera class that centers the camera on my character if that has anything to do with the problem. The character's movement is intended to be restricted to 4 directions(up, down, left, right). As an extra note, the bottom right water tile does have collision, but the collision does not occur for any of the other water tiles. Here is my TileEngine class using System; using System.Collections.Generic; using System.Linq; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Audio; using Microsoft.Xna.Framework.Content; using Microsoft.Xna.Framework.GamerServices; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework.Input; using Microsoft.Xna.Framework.Media; namespace Test2DGame2 { class TileEngine : Microsoft.Xna.Framework.Game { //makes a list of Tiles objects public List<Tiles> tilesList = new List<Tiles>(); public TileEngine() {} public static int tileWidth = 64; public static int tileHeight = 64; public int[,] map = { {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,}, }; public void drawMap(SpriteBatch spriteBatch) { for (int y = 0; y < map.GetLength(0); y++) { for (int x = 0; x < map.GetLength(1); x++) { //make a Rectangle tilesList[map[y, x]].rectangle = new Rectangle(x * tileWidth, y * tileHeight, tileWidth, tileHeight); //draw the Tiles objects spriteBatch.Draw(tilesList[map[y, x]].texture, tilesList[map[y, x]].rectangle, Color.White); } } } } } Here is my Tiles class using System; using System.Collections.Generic; using System.Linq; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Audio; using Microsoft.Xna.Framework.Content; using Microsoft.Xna.Framework.GamerServices; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework.Input; using Microsoft.Xna.Framework.Media; namespace Test2DGame2 { class Tiles { public Texture2D texture; public Rectangle rectangle; public Tiles(Texture2D texture) { this.texture = texture; } //check to see if james collides with the tile from the right side public void rightCollision(James james) { if (james.GetBounds().Intersects(rectangle)) { james.position.X = rectangle.Left - james.front.Width; } } } } I have a method for rightCollision because I could only figure out how to get the collisions from specifying directions. and here is the James class for my character using System; using System.Collections.Generic; using System.Linq; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Audio; using Microsoft.Xna.Framework.Content; using Microsoft.Xna.Framework.GamerServices; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework.Input; using Microsoft.Xna.Framework.Media; namespace Test2DGame2 { class James { public Texture2D front; public Texture2D back; public Texture2D left; public Texture2D right; public Vector2 center; public Vector2 position; public James(Texture2D front) { position = new Vector2(0, 0); this.front = front; center = new Vector2(front.Width / 2, front.Height / 2); } public James(Texture2D front, Vector2 newPosition) { this.front = front; position = newPosition; center = new Vector2(front.Width / 2, front.Height / 2); } public void move(GameTime gameTime) { KeyboardState keyboard = Keyboard.GetState(); float SCALE = 20.0f; float speed = gameTime.ElapsedGameTime.Milliseconds / 100.0f; if (keyboard.IsKeyDown(Keys.Up)) { position.Y -=speed * SCALE; } else if (keyboard.IsKeyDown(Keys.Down)) { position.Y += speed * SCALE; } else if (keyboard.IsKeyDown(Keys.Left)) { position.X -= speed * SCALE; } else if (keyboard.IsKeyDown(Keys.Right)) { position.X += speed * SCALE; } } public void draw(SpriteBatch spriteBatch) { spriteBatch.Draw(front, position, null, Color.White, 0, center, 1.0f, SpriteEffects.None, 0.0f); } //get the boundingbox for James public Rectangle GetBounds() { return new Rectangle( (int)position.X, (int)position.Y, front.Width, front.Height); } } }

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  • Physical Directories vs. MVC View Paths

    - by Rick Strahl
    This post falls into the bucket of operator error on my part, but I want to share this anyway because it describes an issue that has bitten me a few times now and writing it down might keep it a little stronger in my mind. I've been working on an MVC project the last few days, and at the end of a long day I accidentally moved one of my View folders from the MVC Root Folder to the project root. It must have been at the very end of the day before shutting down because tests and manual site navigation worked fine just before I quit for the night. I checked in changes and called it a night. Next day I came back, started running the app and had a lot of breaks with certain views. Oddly custom routes to these controllers/views worked, but stock /{controller}/{action} routes would not. After a bit of spelunking I realized that "Hey one of my View Folders is missing", which made some sense given the error messages I got. I looked in the recycle bin - nothing there, so rather than try to figure out what the hell happened, just restored from my last SVN checkin. At this point the folders are back… but… view access  still ends up breaking for this set of views. Specifically I'm getting the Yellow Screen of Death with: CS0103: The name 'model' does not exist in the current context Here's the full error: Server Error in '/ClassifiedsWeb' Application. Compilation ErrorDescription: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.Compiler Error Message: CS0103: The name 'model' does not exist in the current contextSource Error: Line 1: @model ClassifiedsWeb.EntryViewModel Line 2: @{ Line 3: ViewBag.Title = Model.Entry.Title + " - " + ClassifiedsBusiness.App.Configuration.ApplicationName; Source File: c:\Projects2010\Clients\GorgeNet\Classifieds\ClassifiedsWeb\Classifieds\Show.cshtml    Line: 1 Compiler Warning Messages: Show Detailed Compiler Output: Show Complete Compilation Source: Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272 Here's what's really odd about this error: The views now do exist in the /Views/Classifieds folder of the project, but it appears like MVC is trying to execute the views directly. This is getting pretty weird, man! So I hook up some break points in my controllers to see if my controller actions are getting fired - and sure enough it turns out they are not - but only for those views that were previously 'lost' and then restored from SVN. WTF? At this point I'm thinking that I must have messed up one of the config files, but after some more spelunking and realizing that all the other Controller views work, I give up that idea. Config's gotta be OK if other controllers and views are working. Root Folders and MVC Views don't mix As I mentioned the problem was the fact that I inadvertantly managed to drag my View folder to the root folder of the project. Here's what this looks like in my FUBAR'd project structure after I copied back /Views/Classifieds folder from SVN: There's the actual root folder in the /Views folder and the accidental copy that sits of the root. I of course did not notice the /Classifieds folder at the root because it was excluded and didn't show up in the project. Now, before you call me a complete idiot remember that this happened by accident - an accidental drag probably just before shutting down for the night. :-) So why does this break? MVC should be happy with views in the /Views/Classifieds folder right? While MVC might be happy, IIS is not. The fact that there is a physical folder on disk takes precedence over MVC's routing. In other words if a URL exists that matches a route the pysical path is accessed first. What happens here is that essentially IIS is trying to execute the .cshtml pages directly without ever routing to the Controller methods. In the error page I showed above my clue should have been that the view was served as: c:\Projects2010\Clients\GorgeNet\Classifieds\ClassifiedsWeb\Classifieds\Show.cshtml rather than c:\Projects2010\Clients\GorgeNet\Classifieds\ClassifiedsWeb\Views\Classifieds\Show.cshtml But of course I didn't notice that right away, just skimming to the end and looking at the file name. The reason that /classifieds/list actually fires that file is that the ASP.NET Web Pages engine looks for physical files on disk that match a path. IOW, when calling Web Pages you drop the .cshtml off the Razor page and IIS will serve that just fine. So: /classifieds/list looks and tries to find /classifieds/list.cshtml and executes that script. And that is exactly what's happening. Web Pages is trying to execute the .cshtml file and it fails because Web Pages knows nothing about the @model tag which is an MVC specific template extension. This is why my breakpoints in the controller methods didn't fire and it also explains why the error mentions that the @model key word is invalid (@model is an MVC provided template enhancement to the Razor Engine). The solution of course is super simple: Delete the accidentally created root folder and the problem is solved. Routing and Physical Paths I've run into problems with this before actually. In the past I've had a number of applications that had a physical /Admin folder which also would conflict with an MVC Admin controller. More than once I ended up wondering why the index route (/Admin/) was not working properly. If a physical /Admin folder exists /Admin will not route to the Index action (or whatever default action you have set up, but instead try to list the directory or show the default document in the folder. The only way to force the index page through MVC is to explicitly use /Admin/Index. Makes perfect sense once you realize the physical folder is there, but that's easy to forget in an MVC application. As you might imagine after a few times of running into this I gave up on the Admin folder and moved everything into MVC views to handle those operations. Still it's one of those things that can easily bite you, because the behavior and error messages seem to point at completely different  problems. Moral of the story is: If you see routing problems where routes are not reaching obvious controller methods, always check to make sure there's isn't a physical path being mapped by IIS instead. That way you won't feel stupid like I did after trying a million things for about an hour before discovering my sloppy mousing behavior :-)© Rick Strahl, West Wind Technologies, 2005-2012Posted in MVC   IIS7   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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  • C#: Does an IDisposable in a Halted Iterator Dispose?

    - by James Michael Hare
    If that sounds confusing, let me give you an example. Let's say you expose a method to read a database of products, and instead of returning a List<Product> you return an IEnumerable<Product> in iterator form (yield return). This accomplishes several good things: The IDataReader is not passed out of the Data Access Layer which prevents abstraction leak and resource leak potentials. You don't need to construct a full List<Product> in memory (which could be very big) if you just want to forward iterate once. If you only want to consume up to a certain point in the list, you won't incur the database cost of looking up the other items. This could give us an example like: 1: // a sample data access object class to do standard CRUD operations. 2: public class ProductDao 3: { 4: private DbProviderFactory _factory = SqlClientFactory.Instance 5:  6: // a method that would retrieve all available products 7: public IEnumerable<Product> GetAvailableProducts() 8: { 9: // must create the connection 10: using (var con = _factory.CreateConnection()) 11: { 12: con.ConnectionString = _productsConnectionString; 13: con.Open(); 14:  15: // create the command 16: using (var cmd = _factory.CreateCommand()) 17: { 18: cmd.Connection = con; 19: cmd.CommandText = _getAllProductsStoredProc; 20: cmd.CommandType = CommandType.StoredProcedure; 21:  22: // get a reader and pass back all results 23: using (var reader = cmd.ExecuteReader()) 24: { 25: while(reader.Read()) 26: { 27: yield return new Product 28: { 29: Name = reader["product_name"].ToString(), 30: ... 31: }; 32: } 33: } 34: } 35: } 36: } 37: } The database details themselves are irrelevant. I will say, though, that I'm a big fan of using the System.Data.Common classes instead of your provider specific counterparts directly (SqlCommand, OracleCommand, etc). This lets you mock your data sources easily in unit testing and also allows you to swap out your provider in one line of code. In fact, one of the shared components I'm most proud of implementing was our group's DatabaseUtility library that simplifies all the database access above into one line of code in a thread-safe and provider-neutral way. I went with my own flavor instead of the EL due to the fact I didn't want to force internal company consumers to use the EL if they didn't want to, and it made it easy to allow them to mock their database for unit testing by providing a MockCommand, MockConnection, etc that followed the System.Data.Common model. One of these days I'll blog on that if anyone's interested. Regardless, you often have situations like the above where you are consuming and iterating through a resource that must be closed once you are finished iterating. For the reasons stated above, I didn't want to return IDataReader (that would force them to remember to Dispose it), and I didn't want to return List<Product> (that would force them to hold all products in memory) -- but the first time I wrote this, I was worried. What if you never consume the last item and exit the loop? Are the reader, command, and connection all disposed correctly? Of course, I was 99.999999% sure the creators of C# had already thought of this and taken care of it, but inspection in Reflector was difficult due to the nature of the state machines yield return generates, so I decided to try a quick example program to verify whether or not Dispose() will be called when an iterator is broken from outside the iterator itself -- i.e. before the iterator reports there are no more items. So I wrote a quick Sequencer class with a Dispose() method and an iterator for it. Yes, it is COMPLETELY contrived: 1: // A disposable sequence of int -- yes this is completely contrived... 2: internal class Sequencer : IDisposable 3: { 4: private int _i = 0; 5: private readonly object _mutex = new object(); 6:  7: // Constructs an int sequence. 8: public Sequencer(int start) 9: { 10: _i = start; 11: } 12:  13: // Gets the next integer 14: public int GetNext() 15: { 16: lock (_mutex) 17: { 18: return _i++; 19: } 20: } 21:  22: // Dispose the sequence of integers. 23: public void Dispose() 24: { 25: // force output immediately (flush the buffer) 26: Console.WriteLine("Disposed with last sequence number of {0}!", _i); 27: Console.Out.Flush(); 28: } 29: } And then I created a generator (infinite-loop iterator) that did the using block for auto-Disposal: 1: // simply defines an extension method off of an int to start a sequence 2: public static class SequencerExtensions 3: { 4: // generates an infinite sequence starting at the specified number 5: public static IEnumerable<int> GetSequence(this int starter) 6: { 7: // note the using here, will call Dispose() when block terminated. 8: using (var seq = new Sequencer(starter)) 9: { 10: // infinite loop on this generator, means must be bounded by caller! 11: while(true) 12: { 13: yield return seq.GetNext(); 14: } 15: } 16: } 17: } This is really the same conundrum as the database problem originally posed. Here we are using iteration (yield return) over a large collection (infinite sequence of integers). If we cut the sequence short by breaking iteration, will that using block exit and hence, Dispose be called? Well, let's see: 1: // The test program class 2: public class IteratorTest 3: { 4: // The main test method. 5: public static void Main() 6: { 7: Console.WriteLine("Going to consume 10 of infinite items"); 8: Console.Out.Flush(); 9:  10: foreach(var i in 0.GetSequence()) 11: { 12: // could use TakeWhile, but wanted to output right at break... 13: if(i >= 10) 14: { 15: Console.WriteLine("Breaking now!"); 16: Console.Out.Flush(); 17: break; 18: } 19:  20: Console.WriteLine(i); 21: Console.Out.Flush(); 22: } 23:  24: Console.WriteLine("Done with loop."); 25: Console.Out.Flush(); 26: } 27: } So, what do we see? Do we see the "Disposed" message from our dispose, or did the Dispose get skipped because from an "eyeball" perspective we should be locked in that infinite generator loop? Here's the results: 1: Going to consume 10 of infinite items 2: 0 3: 1 4: 2 5: 3 6: 4 7: 5 8: 6 9: 7 10: 8 11: 9 12: Breaking now! 13: Disposed with last sequence number of 11! 14: Done with loop. Yes indeed, when we break the loop, the state machine that C# generates for yield iterate exits the iteration through the using blocks and auto-disposes the IDisposable correctly. I must admit, though, the first time I wrote one, I began to wonder and that led to this test. If you've never seen iterators before (I wrote a previous entry here) the infinite loop may throw you, but you have to keep in mind it is not a linear piece of code, that every time you hit a "yield return" it cedes control back to the state machine generated for the iterator. And this state machine, I'm happy to say, is smart enough to clean up the using blocks correctly. I suspected those wily guys and gals at Microsoft engineered it well, and I wasn't disappointed. But, I've been bitten by assumptions before, so it's good to test and see. Yes, maybe you knew it would or figured it would, but isn't it nice to know? And as those campy 80s G.I. Joe cartoon public service reminders always taught us, "Knowing is half the battle...". Technorati Tags: C#,.NET

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  • CodePlex Daily Summary for Tuesday, March 23, 2010

    CodePlex Daily Summary for Tuesday, March 23, 2010New Projects.NET StarCraft II Replay Parser: A .NET 3.5 Library used to parse StarCraft II replays. Developed in C# 3.5.BackToBasics "B2B" Chat: With technology and software getting more and more complicated, why not get back to basics with BackToBasicsChat. B2B allows you to chat over a ser...Dark Neuron Game Engine: Dark Neuron allows you to easily create fun and interesting games with no need of developing basic game components. This engine is developed for C#...DeepZoom Pivot Constructor: Library to make building DeepZoom images and Pivot displays simpler.ePaper reader: The project is aimed at creating a tool which helps in reading electronic editions of news papers(pdf/flash)FSharpPageProvider for EPiServer CMS 6: This project starts as the port of EPiServer XmlPageProvider to F# programming language. Hammock for REST: Hammock is a REST library for .NET that greatly simplifies consuming and wrapping RESTful services.Kirill Osenkov: Various small projects, tools, utilities and samples by Kirill OsenkovliveDB: liveDB - web client for sql serverLucilla Framework: lucilla frameworkMVC Foolproof Validation: MVC Foolproof Validation aims to extend the Data Annotation validation provided in ASP.NET MVC. Initial efforts are focused on adding contingent va...MVC2Forums: MVC2Forums is simply a forum system based upon MVC2.Mvvm Foundation Silverlight: Mvvm Foundation Silverlight is a library of classes that are helpful when building Silverlight applications based in the MVVM pattern. This librar...MyPersonalWebsite: This is my personal web site developed using ASP.NET MVC 2Planner: Planner makes it easier for all peoples to plan your tasks. It's developed in Delphi.Prose: Prose is an playground for an experimental JavaScript like language compiler. Eventually it will implement 0-CFA, CFA2, and a Tracing JITQuestTracker: QuestTracker is a todo list presented in the format of a quest tracking list such as the one in World of Warcraft.SevenZipLib: SevenZipLib is a C# interface to the 7-zip library.SimpleGeo .Net: .Net Client library for the SimpleGeo.com serviceNew ReleasesAutenticar no OpenLDAP utilizando pGIna: DLL LDAPAuth Plus: New Group: No LoginBMap.NET: BMap.NET 2: This is the 2nd version of BMap.NET. It has included these tags: Bing Maps, and "About BMap.NET".Cronos: Version 2.04: This is primarily a bug-fix release. Several numerical issues have been resolved, and a resource leak (of MS Windows graphics objects) has been fi...EV Dashboard: v1.0: This release includes support for an App.config file and Auto Connect, which will connect to the specified BMS at startup. Note: You still have to ...GKO Libraries: GKO Libraries 0.1 Beta: 0.1 Beta Added More utilities and functions RefactoringsGLB Virtual Player Builder: 0.4.2 Beta: Beta build that includes a new player creator.HKGolden Express: HKGoldenExpress (Build 201003222215): New features: (None) Bug fix: Fixed bugs of unable to parse XML file stream returned from HKGolden API, as the encoding of XML file stream chang...jQuery Web Controls ASP.Net: jQueryWebControls 1.1.1.2: En esta versión se han corregido problemas existentes en la ejecución de los scripts de jquery cuando se utilizaban MasterPage y/o Ajax Control Too...LightKit: Version 0.2.2: Fixed: fixed bug when CollectionItemsEditor ditermines IsChanged property incorrectly fixed ObjectEditor`a thisstring propertyName method wrong l...LINQ to Twitter: LINQ to Twitter Beta v2.0.8: New items added since v1.1 include: Support for OAuth (via DotNetOpenAuth), secure communication via https, VB language support, serialization of ...MapWindow6: MapWindow 6.0 msi (March 22): This version fixes the icons for the desktop installer and changes the install directory to Program Files\MapWindow instead of Program Files\ISU.Math.NET Numerics: 2010.3.22.1334 Build: Latest alpha buildMiniCalendar Web Part: MiniCalendar Web Part 1.8: A small web part to display links to events stored in a list (or document library) in a mini calendar (in month view mode). It shows tooltips for t...OCInject: Release Two: This release brings some missing features such as Singleton support, Func<T> factories and child containers. It, also, has an updated constructor ...Phalanger - The PHP Language Compiler for the .NET Framework: 2.0 (March 2010): Installer of the latest binaries of Phalanger 2.0 (March 2010) and its integration into Visual Studio 2008. Easy installer with automatic IIS int...Planner: Planner: firstQuestTracker: QuestTracker 0.1: This is the preliminary release of QuestTracker. There's not much documentation or many features yet, but it is functional. Any feedback would be a...QuestTracker: QuestTracker 0.1.1: Bugfix for QuestTracker 0.1QuestTracker: QuestTracker 0.1.2: Fixes an issue with saving the quest list.Rawr: Rawr 2.3.13: We're pleased to announce that, after long last, Rawr3 has entered public beta. You're still welcome to continue using Rawr2 (that's what you're re...Single Web Session: Alpha Model Plugin: !How to use Single Web Session add following line into your web config <httpModules> <add name="SingleSession" type="SingleWebSession.Model.W...SMIL - SharePoint Map Integration Layer: SMIL 1.0: Custom data field Extracts Lat/Lon from EXIF from images being uploaded. Map Web Part Filter with SharePoint views Filter by connecting to...sTASKedit: sTASKedit 42532 (Developer Alpha): This release is only to verify the currently decoded task structure... Supported files: tasks.data (v1.3.6 client)VCC: Latest build, v2.1.30322.0: Automatic drop of latest buildVisual Studio DSite: Advanced Notepad (Visual C++ 2008): An notepad written in c that can save in a rich text file format.Wallpaper Rotator: Wallpaper Rotator 0.5: Wallpaper Rotator 0.5 This version includes the following improvements: Saving the choice of "Random Order (Shuffle Mode)" Updating the configu...Most Popular ProjectsMetaSharpRawrWBFS ManagerSilverlight ToolkitASP.NET Ajax LibraryMicrosoft SQL Server Product Samples: DatabaseAJAX Control ToolkitLiveUpload to FacebookWindows Presentation Foundation (WPF)ASP.NETMost Active ProjectsRawrjQuery Library for SharePoint Web ServicesBlogEngine.NETLINQ to TwitterPHPExcelFarseer Physics EngineFacebook Developer ToolkitNB_Store - Free DotNetNuke Ecommerce Catalog Modulepatterns & practices: Composite WPF and SilverlightN2 CMS

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  • Fun with Declarative Components

    - by [email protected]
    Use case background I have been asked on a number of occasions if our selectOneChoice component could allow random text to be entered, as well as having a list of selections available. Unfortunately, the selectOneChoice component only allows entry via the dropdown selection list and doesn't allow text entry. I was thinking of possible solutions and thought that this might make a good example for using a declarative component.My initial idea My first thought was to use an af:inputText to allow the text entry, and an af:selectOneChoice with mode="compact" for the selections. To get it to layout horizontally, we would want to use an af:panelGroupLayout with layout="horizontal". To get the label for this to line up correctly, we'll need to wrap the af:panelGroupLayout with an af:panelLabelAndMessage. This is the basic structure: <af:panelLabelAndMessage> <af:panelGroupLayout layout="horizontal"> <af:inputText/> <af:selectOneChoice mode="compact"/> </af:panelgroupLayout></af:panelLabelAndMessage> Make it into a declarative component One of the steps to making a declarative component is deciding what attributes we want to be able to specify. To keep this example simple, let's just have: 'label' (the label of our declarative component)'value' (what we want to bind to the value of the input text)'items' (the select items in our dropdown) Here is the initial declarative component code (saved as file "inputTextWithChoice.jsff"): <?xml version='1.0' encoding='UTF-8'?><!-- Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved. --><jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1" xmlns:f="http://java.sun.com/jsf/core" xmlns:af="http://xmlns.oracle.com/adf/faces/rich"> <jsp:directive.page contentType="text/html;charset=utf-8"/> <af:componentDef var="attrs" componentVar="comp"> <af:xmlContent> <component xmlns="http://xmlns.oracle.com/adf/faces/rich/component"> <description>Input text with choice component.</description> <attribute> <description>Label</description> <attribute-name>label</attribute-name> <attribute-class>java.lang.String</attribute-class> </attribute> <attribute> <description>Value</description> <attribute-name>value</attribute-name> <attribute-class>java.lang.Object</attribute-class> </attribute> <attribute> <description>Choice Select Items Value</description> <attribute-name>items</attribute-name> <attribute-class>[[Ljavax.faces.model.SelectItem;</attribute-class> </attribute> </component> </af:xmlContent> <af:panelLabelAndMessage id="myPlm" label="#{attrs.label}" for="myIt"> <af:panelGroupLayout id="myPgl" layout="horizontal"> <af:inputText id="myIt" value="#{attrs.value}" partialTriggers="mySoc" label="myIt" simple="true" /> <af:selectOneChoice id="mySoc" label="mySoc" simple="true" mode="compact" value="#{attrs.value}" autoSubmit="true"> <f:selectItems id="mySIs" value="#{attrs.items}" /> </af:selectOneChoice> </af:panelGroupLayout> </af:panelLabelAndMessage> </af:componentDef></jsp:root> By having af:inputText and af:selectOneChoice both have the same value, then (assuming that this passed in as an EL expression) selecting something in the selectOneChoice will update the value in the af:inputText. To use this declarative component in a jspx page: <af:declarativeComponent id="myItwc" viewId="inputTextWithChoice.jsff" label="InputText with Choice" value="#{demoInput.choiceValue}" items="#{demoInput.selectItems}" /> Some problems arise At first glace, this seems to be functioning like we want it to. However, there is a side effect to having the af:inputText and af:selectOneChoice share a value, if one changes, so does the other. The problem here is that when we update the af:inputText to something that doesn't match one of the selections in the af:selectOneChoice, the af:selectOneChoice will set itself to null (since the value doesn't match one of the selections) and the next time the page is submitted, it will submit the null value and the af:inputText will be empty. Oops, we don't want that. Hmm, what to do. Okay, how about if we make sure that the current value is always available in the selection list. But, lets not render it if the value is empty. We also need to add a partialTriggers attribute so that this gets updated when the af:inputText is changed. Plus, we really don't want to select this item so let's disable it. <af:selectOneChoice id="mySoc" partialTriggers="myIt" label="mySoc" simple="true" mode="compact" value="#{attrs.value}" autoSubmit="true"> <af:selectItem id="mySI" label="Selected:#{attrs.value}" value="#{attrs.value}" disabled="true" rendered="#{!empty attrs.value}"/> <af:separator id="mySp" /> <f:selectItems id="mySIs" value="#{attrs.items}" /></af:selectOneChoice> That seems to be working pretty good. One minor issue that we probably can't do anything about is that when you enter something in the inputText and then click on the selectOneChoice, the popup is displayed, but then goes away because it has been replaced via PPR because we told it to with the partialTriggers="myIt". This is not that big a deal, since if you are entering something manually, you probably don't want to select something from the list right afterwards. Making it look like a single component. Now, let's play around a bit with the contentStyle of the af:inputText and the af:selectOneChoice so that the compact icon will layout inside the af:inputText, making it look more like an af:selectManyChoice. We need to add some padding-right to the af;inputText so there is space for the icon. These adjustments were for the Fusion FX skin. <af:inputText id="myIt" partialTriggers="mySoc" autoSubmit="true" contentStyle="padding-right: 15px;" value="#{attrs.value}" label="myIt" simple="true" /><af:selectOneChoice id="mySoc" partialTriggers="myIt" contentStyle="position: relative; top: -2px; left: -19px;" label="mySoc" simple="true" mode="compact" value="#{attrs.value}" autoSubmit="true"> <af:selectItem id="mySI" label="Selected:#{attrs.value}" value="#{attrs.value}" disabled="true" rendered="#{!empty attrs.value}"/> <af:separator id="mySp" /> <f:selectItems id="mySIs" value="#{attrs.items}" /></af:selectOneChoice> There you have it, a declarative component that allows for suggested selections, but also allows arbitrary text to be entered. This could be used for search field, where the 'items' attribute could be populated with popular searches. Lines of java code written: 0

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  • Why Is Faulty Behaviour In The .NET Framework Not Fixed?

    - by Alois Kraus
    Here is the scenario: You have a Windows Form Application that calls a method via Invoke or BeginInvoke which throws exceptions. Now you want to find out where the error did occur and how the method has been called. Here is the output we do get when we call Begin/EndInvoke or simply Invoke The actual code that was executed was like this:         private void cInvoke_Click(object sender, EventArgs e)         {             InvokingFunction(CallMode.Invoke);         }            [MethodImpl(MethodImplOptions.NoInlining)]         void InvokingFunction(CallMode mode)         {             switch (mode)             {                 case CallMode.Invoke:                     this.Invoke(new MethodInvoker(GenerateError));   The faulting method is called GenerateError which does throw a NotImplementedException exception and wraps it in a NotSupportedException.           [MethodImpl(MethodImplOptions.NoInlining)]         void GenerateError()         {             F1();         }           private void F1()         {             try             {                 F2();             }             catch (Exception ex)             {                 throw new NotSupportedException("Outer Exception", ex);             }         }           private void F2()         {            throw new NotImplementedException("Inner Exception");         } It is clear that the method F2 and F1 did actually throw these exceptions but we do not see them in the call stack. If we directly call the InvokingFunction and catch and print the exception we can find out very easily how we did get into this situation. We see methods F1,F2,GenerateError and InvokingFunction directly in the stack trace and we see that actually two exceptions did occur. Here is for comparison what we get from Invoke/EndInvoke System.NotImplementedException: Inner Exception     StackTrace:    at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)     at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)     at WindowsFormsApplication1.AppForm.InvokingFunction(CallMode mode)     at WindowsFormsApplication1.AppForm.cInvoke_Click(Object sender, EventArgs e)     at System.Windows.Forms.Control.OnClick(EventArgs e)     at System.Windows.Forms.Button.OnClick(EventArgs e) The exception message is kept but the stack starts running from our Invoke call and not from the faulting method F2. We have therefore no clue where this exception did occur! The stack starts running at the method MarshaledInvoke because the exception is rethrown with the throw catchedException which resets the stack trace. That is bad but things are even worse because if previously lets say 5 exceptions did occur .NET will return only the first (innermost) exception. That does mean that we do not only loose the original call stack but all other exceptions and all data contained therein as well. It is a pity that MS does know about this and simply closes this issue as not important. Programmers will play a lot more around with threads than before thanks to TPL, PLINQ that do come with .NET 4. Multithreading is hyped quit a lot in the press and everybody wants to use threads. But if the .NET Framework makes it nearly impossible to track down the easiest UI multithreading issue I have a problem with that. The problem has been reported but obviously not been solved. .NET 4 Beta 2 did not have changed that dreaded GetBaseException call in MarshaledInvoke to return only the innermost exception of the complete exception stack. It is really time to fix this. WPF on the other hand does the right thing and wraps the exceptions inside a TargetInvocationException which makes much more sense. But Not everybody uses WPF for its daily work and Windows forms applications will still be used for a long time. Below is the code to repro the issues shown and how the exceptions can be rendered in a meaningful way. The default Exception.ToString implementation generates a hard to interpret stack if several nested exceptions did occur. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Threading; using System.Globalization; using System.Runtime.CompilerServices;   namespace WindowsFormsApplication1 {     public partial class AppForm : Form     {         enum CallMode         {             Direct = 0,             BeginInvoke = 1,             Invoke = 2         };           public AppForm()         {             InitializeComponent();             Thread.CurrentThread.CurrentUICulture = CultureInfo.InvariantCulture;             Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);         }           void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)         {             cOutput.Text = PrintException(e.Exception, 0, null).ToString();         }           private void cDirectUnhandled_Click(object sender, EventArgs e)         {             InvokingFunction(CallMode.Direct);         }           private void cDirectCall_Click(object sender, EventArgs e)         {             try             {                 InvokingFunction(CallMode.Direct);             }             catch (Exception ex)             {                 cOutput.Text = PrintException(ex, 0, null).ToString();             }         }           private void cInvoke_Click(object sender, EventArgs e)         {             InvokingFunction(CallMode.Invoke);         }           private void cBeginInvokeCall_Click(object sender, EventArgs e)         {             InvokingFunction(CallMode.BeginInvoke);         }           [MethodImpl(MethodImplOptions.NoInlining)]         void InvokingFunction(CallMode mode)         {             switch (mode)             {                 case CallMode.Direct:                     GenerateError();                     break;                 case CallMode.Invoke:                     this.Invoke(new MethodInvoker(GenerateError));                     break;                 case CallMode.BeginInvoke:                     IAsyncResult res = this.BeginInvoke(new MethodInvoker(GenerateError));                     this.EndInvoke(res);                     break;             }         }           [MethodImpl(MethodImplOptions.NoInlining)]         void GenerateError()         {             F1();         }           private void F1()         {             try             {                 F2();             }             catch (Exception ex)             {                 throw new NotSupportedException("Outer Exception", ex);             }         }           private void F2()         {            throw new NotImplementedException("Inner Exception");         }           StringBuilder PrintException(Exception ex, int identLevel, StringBuilder sb)         {             StringBuilder builtStr = sb;             if( builtStr == null )                 builtStr = new StringBuilder();               if( ex == null )                 return builtStr;                 WriteLine(builtStr, String.Format("{0}: {1}", ex.GetType().FullName, ex.Message), identLevel);             WriteLine(builtStr, String.Format("StackTrace: {0}", ShortenStack(ex.StackTrace)), identLevel + 1);             builtStr.AppendLine();               return PrintException(ex.InnerException, ++identLevel, builtStr);         }               void WriteLine(StringBuilder sb, string msg, int identLevel)         {             foreach (string trimmedLine in SplitToLines(msg)                                            .Select( (line) => line.Trim()) )             {                 for (int i = 0; i < identLevel; i++)                     sb.Append('\t');                 sb.Append(trimmedLine);                 sb.AppendLine();             }         }           string ShortenStack(string stack)         {             int nonAppFrames = 0;             // Skip stack frames not part of our app but include two foreign frames and skip the rest             // If our stack frame is encountered reset counter to 0             return SplitToLines(stack)                               .Where((line) =>                               {                                   nonAppFrames = line.Contains("WindowsFormsApplication1") ? 0 : nonAppFrames + 1;                                   return nonAppFrames < 3;                               })                              .Select((line) => line)                              .Aggregate("", (current, line) => current + line + Environment.NewLine);         }           static char[] NewLines = Environment.NewLine.ToCharArray();         string[] SplitToLines(string str)         {             return str.Split(NewLines, StringSplitOptions.RemoveEmptyEntries);         }     } }

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  • How to use Azure storage for uploading and displaying pictures.

    - by Magnus Karlsson
    Basic set up of Azure storage for local development and production. This is a somewhat completion of the following guide from http://www.windowsazure.com/en-us/develop/net/how-to-guides/blob-storage/ that also involves a practical example that I believe is commonly used, i.e. upload and present an image from a user.   First we set up for local storage and then we configure for them to work on a web role. Steps: 1. Configure connection string locally. 2. Configure model, controllers and razor views.   1. Setup connectionsstring 1.1 Right click your web role and choose “Properties”. 1.2 Click Settings. 1.3 Add setting. 1.4 Name your setting. This will be the name of the connectionstring. 1.5 Click the ellipsis to the right. (the ellipsis appear when you mark the area. 1.6 The following window appears- Select “Windows Azure storage emulator” and click ok.   Now we have a connection string to use. To be able to use it we need to make sure we have windows azure tools for storage. 2.1 Click Tools –> Library Package manager –> Manage Nuget packages for solution. 2.2 This is what it looks like after it has been added.   Now on to what the code should look like. 3.1 First we need a view which collects images to upload. Here Index.cshtml. 1: @model List<string> 2:  3: @{ 4: ViewBag.Title = "Index"; 5: } 6:  7: <h2>Index</h2> 8: <form action="@Url.Action("Upload")" method="post" enctype="multipart/form-data"> 9:  10: <label for="file">Filename:</label> 11: <input type="file" name="file" id="file1" /> 12: <br /> 13: <label for="file">Filename:</label> 14: <input type="file" name="file" id="file2" /> 15: <br /> 16: <label for="file">Filename:</label> 17: <input type="file" name="file" id="file3" /> 18: <br /> 19: <label for="file">Filename:</label> 20: <input type="file" name="file" id="file4" /> 21: <br /> 22: <input type="submit" value="Submit" /> 23: 24: </form> 25:  26: @foreach (var item in Model) { 27:  28: <img src="@item" alt="Alternate text"/> 29: } 3.2 We need a controller to receive the post. Notice the “containername” string I send to the blobhandler. I use this as a folder for the pictures for each user. If this is not a requirement you could just call it container or anything with small characters directly when creating the container. 1: public ActionResult Upload(IEnumerable<HttpPostedFileBase> file) 2: { 3: BlobHandler bh = new BlobHandler("containername"); 4: bh.Upload(file); 5: var blobUris=bh.GetBlobs(); 6: 7: return RedirectToAction("Index",blobUris); 8: } 3.3 The handler model. I’ll let the comments speak for themselves. 1: public class BlobHandler 2: { 3: // Retrieve storage account from connection string. 4: CloudStorageAccount storageAccount = CloudStorageAccount.Parse( 5: CloudConfigurationManager.GetSetting("StorageConnectionString")); 6: 7: private string imageDirecoryUrl; 8: 9: /// <summary> 10: /// Receives the users Id for where the pictures are and creates 11: /// a blob storage with that name if it does not exist. 12: /// </summary> 13: /// <param name="imageDirecoryUrl"></param> 14: public BlobHandler(string imageDirecoryUrl) 15: { 16: this.imageDirecoryUrl = imageDirecoryUrl; 17: // Create the blob client. 18: CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient(); 19: 20: // Retrieve a reference to a container. 21: CloudBlobContainer container = blobClient.GetContainerReference(imageDirecoryUrl); 22: 23: // Create the container if it doesn't already exist. 24: container.CreateIfNotExists(); 25: 26: //Make available to everyone 27: container.SetPermissions( 28: new BlobContainerPermissions 29: { 30: PublicAccess = BlobContainerPublicAccessType.Blob 31: }); 32: } 33: 34: public void Upload(IEnumerable<HttpPostedFileBase> file) 35: { 36: // Create the blob client. 37: CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient(); 38: 39: // Retrieve a reference to a container. 40: CloudBlobContainer container = blobClient.GetContainerReference(imageDirecoryUrl); 41: 42: if (file != null) 43: { 44: foreach (var f in file) 45: { 46: if (f != null) 47: { 48: CloudBlockBlob blockBlob = container.GetBlockBlobReference(f.FileName); 49: blockBlob.UploadFromStream(f.InputStream); 50: } 51: } 52: } 53: } 54: 55: public List<string> GetBlobs() 56: { 57: // Create the blob client. 58: CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient(); 59: 60: // Retrieve reference to a previously created container. 61: CloudBlobContainer container = blobClient.GetContainerReference(imageDirecoryUrl); 62: 63: List<string> blobs = new List<string>(); 64: 65: // Loop over blobs within the container and output the URI to each of them 66: foreach (var blobItem in container.ListBlobs()) 67: blobs.Add(blobItem.Uri.ToString()); 68: 69: return blobs; 70: } 71: } 3.4 So, when the files have been uploaded we will get them to present them to out user in the index page. Pretty straight forward. In this example we only present the image by sending the Uri’s to the view. A better way would be to save them up in a view model containing URI, metadata, alternate text, and other relevant information but for this example this is all we need.   4. Now press F5 in your solution to try it out. You can see the storage emulator UI here:     4.1 If you get any exceptions or errors I suggest to first check if the service Is running correctly. I had problem with this and they seemed related to the installation and a reboot fixed my problems.     5. Set up for Cloud storage. To do this we need to add configuration for cloud just as we did for local in step one. 5.1 We need our keys to do this. Go to the windows Azure menagement portal, select storage icon to the right and click “Manage keys”. (Image from a different blog post though).   5.2 Do as in step 1.but replace step 1.6 with: 1.6 Choose “Manually entered credentials”. Enter your account name. 1.7 Paste your Account Key from step 5.1. and click ok.   5.3. Save, publish and run! Please feel free to ask any questions using the comments form at the bottom of this page. I will get back to you to help you solve any questions. Our consultancy agency also provides services in the Nordic regions if you would like any further support.

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  • Trouble connecting to vsftpd on ubuntu server

    - by littleK
    I have installed Ubuntu Server 10.10 and I am using it to host a domain that I have. I am trying to set up FTP for the server, but I am running into some problems. I have successfully installed vsFTPd and I have opened up ports 20, 21 on my firewall. In my vsFTPd configuration, I have enabled SSL. Every time I try to connect to my server via FTP, I receive a "Connection Refused" error. I have had a little more success with SSL disabled, however the connection process will time out after the LIST command (but it does accept my authentication). Here is my vsFTPd configuration, the SSL stuff is at the bottom: # Example config file /etc/vsftpd.conf # # The default compiled in settings are fairly paranoid. This sample file # loosens things up a bit, to make the ftp daemon more usable. # Please see vsftpd.conf.5 for all compiled in defaults. # # READ THIS: This example file is NOT an exhaustive list of vsftpd options. # Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's # capabilities. # # # Run standalone? vsftpd can run either from an inetd or as a standalone # daemon started from an initscript. listen=YES # # Run standalone with IPv6? # Like the listen parameter, except vsftpd will listen on an IPv6 socket # instead of an IPv4 one. This parameter and the listen parameter are mutually # exclusive. #listen_ipv6=YES # # Allow anonymous FTP? (Disabled by default) anonymous_enable=NO # # Uncomment this to allow local users to log in. local_enable=YES # # Uncomment this to enable any form of FTP write command. write_enable=YES # # Default umask for local users is 077. You may wish to change this to 022, # if your users expect that (022 is used by most other ftpd's) #local_umask=022 # # Uncomment this to allow the anonymous FTP user to upload files. This only # has an effect if the above global write enable is activated. Also, you will # obviously need to create a directory writable by the FTP user. #anon_upload_enable=YES # # Uncomment this if you want the anonymous FTP user to be able to create # new directories. #anon_mkdir_write_enable=YES # # Activate directory messages - messages given to remote users when they # go into a certain directory. dirmessage_enable=YES # # If enabled, vsftpd will display directory listings with the time # in your local time zone. The default is to display GMT. The # times returned by the MDTM FTP command are also affected by this # option. use_localtime=YES # # Activate logging of uploads/downloads. xferlog_enable=YES # # Make sure PORT transfer connections originate from port 20 (ftp-data). connect_from_port_20=YES # # If you want, you can arrange for uploaded anonymous files to be owned by # a different user. Note! Using "root" for uploaded files is not # recommended! #chown_uploads=YES #chown_username=whoever # # You may override where the log file goes if you like. The default is shown # below. #xferlog_file=/var/log/vsftpd.log # # If you want, you can have your log file in standard ftpd xferlog format. # Note that the default log file location is /var/log/xferlog in this case. #xferlog_std_format=YES # # You may change the default value for timing out an idle session. #idle_session_timeout=600 # # You may change the default value for timing out a data connection. #data_connection_timeout=120 # # It is recommended that you define on your system a unique user which the # ftp server can use as a totally isolated and unprivileged user. #nopriv_user=ftpsecure # # Enable this and the server will recognise asynchronous ABOR requests. Not # recommended for security (the code is non-trivial). Not enabling it, # however, may confuse older FTP clients. #async_abor_enable=YES # # By default the server will pretend to allow ASCII mode but in fact ignore # the request. Turn on the below options to have the server actually do ASCII # mangling on files when in ASCII mode. # Beware that on some FTP servers, ASCII support allows a denial of service # attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd # predicted this attack and has always been safe, reporting the size of the # raw file. # ASCII mangling is a horrible feature of the protocol. #ascii_upload_enable=YES #ascii_download_enable=YES # # You may fully customise the login banner string: #ftpd_banner=Welcome to blah FTP service. # # You may specify a file of disallowed anonymous e-mail addresses. Apparently # useful for combatting certain DoS attacks. #deny_email_enable=YES # (default follows) #banned_email_file=/etc/vsftpd.banned_emails # # You may restrict local users to their home directories. See the FAQ for # the possible risks in this before using chroot_local_user or # chroot_list_enable below. #chroot_local_user=YES # # You may specify an explicit list of local users to chroot() to their home # directory. If chroot_local_user is YES, then this list becomes a list of # users to NOT chroot(). #chroot_local_user=YES #chroot_list_enable=YES # (default follows) #chroot_list_file=/etc/vsftpd.chroot_list # # You may activate the "-R" option to the builtin ls. This is disabled by # default to avoid remote users being able to cause excessive I/O on large # sites. However, some broken FTP clients such as "ncftp" and "mirror" assume # the presence of the "-R" option, so there is a strong case for enabling it. #ls_recurse_enable=YES # # Debian customization # # Some of vsftpd's settings don't fit the Debian filesystem layout by # default. These settings are more Debian-friendly. # # This option should be the name of a directory which is empty. Also, the # directory should not be writable by the ftp user. This directory is used # as a secure chroot() jail at times vsftpd does not require filesystem # access. secure_chroot_dir=/var/run/vsftpd/empty # # This string is the name of the PAM service vsftpd will use. pam_service_name=vsftpd # # This option specifies the location of the RSA certificate to use for SSL # encrypted connections. rsa_cert_file=/etc/ssl/private/vsftpd.pem # SSL ssl_enable=YES allow_anon_ssl=NO force_local_data_ssl=YES force_local_logins_ssl=YES ssl_tlsv1=YES ssl_sslv2=YES ssl_sslv3=YES Thanks!

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  • SortedDictionary and SortedList

    - by Simon Cooper
    Apart from Dictionary<TKey, TValue>, there's two other dictionaries in the BCL - SortedDictionary<TKey, TValue> and SortedList<TKey, TValue>. On the face of it, these two classes do the same thing - provide an IDictionary<TKey, TValue> interface where the iterator returns the items sorted by the key. So what's the difference between them, and when should you use one rather than the other? (as in my previous post, I'll assume you have some basic algorithm & datastructure knowledge) SortedDictionary We'll first cover SortedDictionary. This is implemented as a special sort of binary tree called a red-black tree. Essentially, it's a binary tree that uses various constraints on how the nodes of the tree can be arranged to ensure the tree is always roughly balanced (for more gory algorithmical details, see the wikipedia link above). What I'm concerned about in this post is how the .NET SortedDictionary is actually implemented. In .NET 4, behind the scenes, the actual implementation of the tree is delegated to a SortedSet<KeyValuePair<TKey, TValue>>. One example tree might look like this: Each node in the above tree is stored as a separate SortedSet<T>.Node object (remember, in a SortedDictionary, T is instantiated to KeyValuePair<TKey, TValue>): class Node { public bool IsRed; public T Item; public SortedSet<T>.Node Left; public SortedSet<T>.Node Right; } The SortedSet only stores a reference to the root node; all the data in the tree is accessed by traversing the Left and Right node references until you reach the node you're looking for. Each individual node can be physically stored anywhere in memory; what's important is the relationship between the nodes. This is also why there is no constructor to SortedDictionary or SortedSet that takes an integer representing the capacity; there are no internal arrays that need to be created and resized. This may seen trivial, but it's an important distinction between SortedDictionary and SortedList that I'll cover later on. And that's pretty much it; it's a standard red-black tree. Plenty of webpages and datastructure books cover the algorithms behind the tree itself far better than I could. What's interesting is the comparions between SortedDictionary and SortedList, which I'll cover at the end. As a side point, SortedDictionary has existed in the BCL ever since .NET 2. That means that, all through .NET 2, 3, and 3.5, there has been a bona-fide sorted set class in the BCL (called TreeSet). However, it was internal, so it couldn't be used outside System.dll. Only in .NET 4 was this class exposed as SortedSet. SortedList Whereas SortedDictionary didn't use any backing arrays, SortedList does. It is implemented just as the name suggests; two arrays, one containing the keys, and one the values (I've just used random letters for the values): The items in the keys array are always guarenteed to be stored in sorted order, and the value corresponding to each key is stored in the same index as the key in the values array. In this example, the value for key item 5 is 'z', and for key item 8 is 'm'. Whenever an item is inserted or removed from the SortedList, a binary search is run on the keys array to find the correct index, then all the items in the arrays are shifted to accomodate the new or removed item. For example, if the key 3 was removed, a binary search would be run to find the array index the item was at, then everything above that index would be moved down by one: and then if the key/value pair {7, 'f'} was added, a binary search would be run on the keys to find the index to insert the new item, and everything above that index would be moved up to accomodate the new item: If another item was then added, both arrays would be resized (to a length of 10) before the new item was added to the arrays. As you can see, any insertions or removals in the middle of the list require a proportion of the array contents to be moved; an O(n) operation. However, if the insertion or removal is at the end of the array (ie the largest key), then it's only O(log n); the cost of the binary search to determine it does actually need to be added to the end (excluding the occasional O(n) cost of resizing the arrays to fit more items). As a side effect of using backing arrays, SortedList offers IList Keys and Values views that simply use the backing keys or values arrays, as well as various methods utilising the array index of stored items, which SortedDictionary does not (and cannot) offer. The Comparison So, when should you use one and not the other? Well, here's the important differences: Memory usage SortedDictionary and SortedList have got very different memory profiles. SortedDictionary... has a memory overhead of one object instance, a bool, and two references per item. On 64-bit systems, this adds up to ~40 bytes, not including the stored item and the reference to it from the Node object. stores the items in separate objects that can be spread all over the heap. This helps to keep memory fragmentation low, as the individual node objects can be allocated wherever there's a spare 60 bytes. In contrast, SortedList... has no additional overhead per item (only the reference to it in the array entries), however the backing arrays can be significantly larger than you need; every time the arrays are resized they double in size. That means that if you add 513 items to a SortedList, the backing arrays will each have a length of 1024. To conteract this, the TrimExcess method resizes the arrays back down to the actual size needed, or you can simply assign list.Capacity = list.Count. stores its items in a continuous block in memory. If the list stores thousands of items, this can cause significant problems with Large Object Heap memory fragmentation as the array resizes, which SortedDictionary doesn't have. Performance Operations on a SortedDictionary always have O(log n) performance, regardless of where in the collection you're adding or removing items. In contrast, SortedList has O(n) performance when you're altering the middle of the collection. If you're adding or removing from the end (ie the largest item), then performance is O(log n), same as SortedDictionary (in practice, it will likely be slightly faster, due to the array items all being in the same area in memory, also called locality of reference). So, when should you use one and not the other? As always with these sort of things, there are no hard-and-fast rules. But generally, if you: need to access items using their index within the collection are populating the dictionary all at once from sorted data aren't adding or removing keys once it's populated then use a SortedList. But if you: don't know how many items are going to be in the dictionary are populating the dictionary from random, unsorted data are adding & removing items randomly then use a SortedDictionary. The default (again, there's no definite rules on these sort of things!) should be to use SortedDictionary, unless there's a good reason to use SortedList, due to the bad performance of SortedList when altering the middle of the collection.

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  • Issue with CSS drop down

    - by user277314
    Im having a little issue with the css drop down in my navigation. The products nav tab is suppose to have the drop down. Additionally, the nav works fine but it seems that the sub categories arent displaying correctly. HERE IS LINK Here is my navigation code: HTML <div id="nav"> <ul id="navlist"> <li><a href="home.html" id="nav-home">Home</a></li> <li><a href="company.html" id="nav-company">company</a></li> <li><a href="benefits.html" id="nav-benefits">benefits</a></li> <li><div id="nav-products2">Products</div> <ul> <li><a href="food.html" id="nav-food-serv">Food Processing Services</a></li> <li><a href="vehicle.html" id="nav-vehicle-serv">Vehicle Services</a></li> <li><a href="auto.html" id="nav-auto-serv">Automotive Services</a></li> <li><a href="laundry.html" id="nav-laundry-serv">Automotive Services</a></li> </ul> </li> <li><a href="laboratories.html" id="nav-labs">laboratories</a></li> <li><a href="industries.html" id="nav-industries">industries</a></li> <li><a href="contact.html" id="nav-contact">contact</a></li> </ul> </div> CSS #nav { float:left; width:1002px; height:42px; } #navlist { list-style: none; list-style-position:outside; list-style-type: none; } #navlist li{ float:left; } #navlist li a { display: block; height: 42px; overflow: hidden; background-position: top left; background-repeat: no-repeat; text-indent: -999em; } #navlist li a:hover { background-position: bottom left; } #navlist li .current {background-position: bottom left;} /* NAV SPECIFICS */ #nav-home {width: 129px; background-image: url(../images/nav/home.jpg);} #nav-company {width: 161px; background-image: url(../images/nav/company.jpg);} #nav-benefits {width: 133px; background-image: url(../images/nav/benefits.jpg);} #nav-products {width: 112px; background-image: url(../images/nav/products.jpg);} #nav-labs {width: 137px; background-image: url(../images/nav/laboratories.jpg);} #nav-industries {width: 169px; background-image: url(../images/nav/industries.jpg);} #nav-contact {width: 161px; background-image: url(../images/nav/contact.jpg);} #nav-food-serv {width: 161px; background-image: url(../images/nav/sub.jpg);} #nav-vehicle-serv {width: 161px; background-image: url(../images/nav/sub.jpg);} #nav-auto-serv {width: 161px; background-image: url(../images/nav/nav/sub.jpg);} #nav-laundry-serv {width: 161px; background-image: url(../images/nav/sub.jpg);} #nav-products2 {width: 112px; background-image: url(../images /nav/products.jpg);height: 42px; overflow: hidden; background-position: top left; background-repeat: no-repeat;text-indent: -999em;} #nav-products2:hover {background-position: bottom left;} #navlist li ul { /* second-level lists */ position: absolute; z-index:10; list-style:none; display: block; background: #000; width: 161px; left: -999em; /* using left instead of display to hide menus because display: none isn't read by screen readers */ margin:0; padding:0; border-left:1px solid #a58545; border-right:1px solid #a58545; } #navlist li ul li { list-style:none; display: block; clear:left; width:100%; } #navlist li ul li a { display:block; overflow: hidden; height:42px; background-position: top left; background-repeat: no-repeat; text-indent: -999em; margin:0; background-color:0; padding:0; width: 161px; } #navlist li ul li a:hover { background-position: bottom left; }

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  • Getting your bearings and defining the project objective

    - by johndoucette
    I wrote this two years ago and thought it was worth posting… Some may think this is a daunting task and some may even say “what a waste of time” and want to open MS Project and start typing out tasks because someone asked for an estimate and a task list. Hell, maybe you even use Excel and pump out a spreadsheet with some real scientific formula for guessing how long it will take to code a bunch of classes. However, this short exercise will provide the basis for the entire project, whether small or large and be a great friend when communicating to anyone on your team or even your client. I call this the Project Brief. If you find yourself going beyond a single page, then you must decompose the sections and summarize your findings so there is a complete and clear picture of the project you are working on in a relatively short statement. Here is a great quote from the PMBOK (Project Management Body of Knowledge) relative to what a project is;   A project is a temporary endeavor undertaken to create a unique product, service or result. With this in mind, the project brief should encompass the entirety (objective) of the endeavor in its explanation and what it will take (goals) to create the product, service or result (deliverables). Normally the process of identifying the project objective is done during the first stage of a project called the Project Kickoff, but you can perform this very important step anytime to help you get a bearing. There are many more parts to helping a project stay on course, but this is usually the foundation where it can be grounded on. Through a series of 3 exercises, you should be able to come up with the objective, goals and deliverables on your project. Follow these steps, and in no time (about &frac12; hour), you will have the foundation of your project plan. (See examples below) Exercise 1 – Objectives Begin with the end in mind. Think about your project in business terms with a couple things to help you understand the objective; Reference the business benefit in terms of cost, speed and / or quality, Provide a higher level of what the outcome will look like (future sense) It should be non-measurable, that’s what the goals are all about The output should be a single paragraph with three sentences and take 10 minutes to write. *Typically, agreement must be reached on the objectives of the project before you would proceed to the next steps of the project. Exercise 2 – Goals A project goal is a statement that answers questions about who, what, why, where and when. A good project goal statement; Answers the five “W” questions for the project Is measurable in each of its parts Is published and agreed on by all the owners This helps the Project Manager receive confirmation on defining the project target. Using the established project objective done in the first exercise, think about the things it will take to get the job done. Think about tangible activities which are the top level tasks in a typical Work Breakdown Structure (WBS). The overall goal statement plus all the deliverables (next exercise) can be seen as the project team’s contract with the project owners. Write 3 - 5 goals in about 10 minutes. You should not write the words “Who, what, why, where and when, but merely be able to answer the questions when you read a goal. Exercise 3 – Deliverables Every project creates some type of output and these outputs are called deliverables. There are two classes of deliverables; Internal – produced for project team members to meet their goals External – produced for project owners to meet their expectations The list you enter here provides a checklist for the team’s delivery and/or is a statement of all the expectations of the project owners. Here are some typical project deliverables; Product and product documentation End product/system Requirements/feature documents Installation guides Demo/prototype System design documents User guides/help files Plans Project plan Training plan Conversion/installation/delivery plan Test plans Documentation plan Communication plan Reports and general documentation Progress reports System acceptance tests Outstanding bug list Procedures Risk and issue logs Project history Deliverables should go with each of the goals. Have 3-5 deliverables for each goal. When you are done, you will have established a great foundation for the clarity of your project. This exercise can take some time, but with practice, you should be able to whip this one out in 10 minutes as well, especially if you are intimate with an ongoing project. Samples  Objective [Client] is implementing a series of MOSS sites to support external public (Internet), internal employee (Intranet) and an external secure (password protected Internet) applications. This project will focus on the public-facing web site and will provide [Client] with architectural recommendations based on the current design being done by their design partner [Partner] and the internal Content Team. In addition, it will provide [Client] with a development plan and confidence they need to deploy a world class public Internet website. Goals 1.  [Consultant] will provide technical guidance and set project team expectations for the implementation of the MOSS Internet site based on provided features/functions within three weeks. 2.  [Consultant] will understand phase 2 secure password-protected Internet site design and provide recommendations.   Deliverables 1.1  Public Internet (unsecure) Architectural Recommendation Plan 1.2  Physical Site construction Work Breakdown Structure and plan (Time, cost and resources needed) 2.1  Two Factor authentication recommendation document   Objective [Client] is currently using an application developed by [Consultant] many years ago called "XXX". This application, although functional, does not meet their new updated business requirements and contains a few defects which [Client] has developed work-around processes. [Client] would like to have a "new and improved" system to support their membership management needs by expanding membership and subscription capabilities, provide accounting integration with internal (GL) and external (VeriSign) systems, and implement hooks to the current CRM solution. This effort will take place through a series of phases, beginning with envisioning. Goals 1. Through discussions with users, [Consultant] will discover current issues/bugs which need to be resolved which must meet the current functionality requirements within three weeks. 2. [Consultant] will gather requirements from the users about what is "needed" vs. "what they have" for enhancements and provide a high level document supporting their needs. 3. [Consultant] will meet with the team members through a series of meetings and help define the overall project plan to deliver a new and improved solution. Deliverables 1.1 Prioritized list of Current application issues/bugs that need to be resolved 1.2 Provide a resolution plan on the issues/bugs identified in the current application 1.3 Risk Assessment Document 2.1 Deliver a Requirements Document showing high-level [Client] needs for the new XXX application. · New feature functionality not in the application today · Existing functionality that will remain in the new functionality 2.2 Reporting Requirements Document 3.1 A Project Plan showing the deliverables and cost for the next (second) phase of this project. 3.2 A Statement of Work for the next (second) phase of this project. 3.3 An Estimate of any work that would need to follow the second phase.

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  • Windows Phone Developer Spotlight: Nikolai Joukov

    - by Lori Lalonde
    Originally posted on: http://geekswithblogs.net/lorilalonde/archive/2014/06/04/windows-phone-developer-spotlight-nikolai-joukov.aspxAs part of an ongoing series, I plan to include a spotlight post on people within the community that are stars in their field and area of expertise. For my first spotlight post, I interviewed Nikolai Joukov, who is a regular attendee at my local area .NET User Group (CTTDNUG), and has also participated in many of the Mobile and Cloud workshops we have hosted over the past few years. Nikolai stood out immediately, because of his passion for developing mobile apps, his interest in continuous learning, and his drive to publish quality apps that people will find useful and entertaining. Background: Nikolai immigrated to Canada in 1995, and has been working in IT since 1997. He moved on to become an independent contractor in 2005, and has worked at various large scale organizations over the course of his career, including BMO, Enbridge, Economical Insurance, Equitable Life, Manulife and Sun Life. Nikolai is an accomplished Windows Phone and Windows Store publisher, with 11 published Windows Phone apps, and 8 published Windows Store apps. He has almost 6000 downloads and favourable reviews. Q & A with Nikolai How many years have you been developing Windows Phone apps? 2 years When did you develop your very first Windows Phone app, and what was it about? Actually, the very first app I wrote was for the Microsoft “Smart Phone” back in 2004. This phone was given to me by Microsoft during the Developers Days Conference in Toronto. It was some kind of experimental model named Smart Phone, but you had to use VB 3 to develop the applications. Needless to say, this was not very successful at that time. My app was a Stock Trades Calculator. Very primitive, but it was working for me. The phone was heavy and the battery barely lasted 4 hours. Microsoft stopped supporting it few months later and the phone stopped working shortly after, but I still have it as a souvenir. For Windows Phone, my first app was “Trip Packing Assistant”. This is a simple trip packing check list that allows you to list items by category, set required quantity of items, and mark off the item in the list when it is packed. I designed it for me and my wife Galina, since we love to travel and this program helps manage our list for us. How did you get started in Windows Phone development? I have to say thanks to our .NET User Group for introducing me to Windows Phone development. I was intrigued and decided to give it a try. In October 2012 during a 2 day training event that ObjectSharp hosted in London, I met Bruce Johnson. On his advice, I registered for Developer Movement, and it is was a good push to actually complete the apps that I started. You have a great series of travel guide apps both for Windows Phone and Windows Store. Tell us about how you came up with the idea to develop those apps and what process you went through to put it all together. Like I said earlier, my wife and I love to travel. Before I created Trip Packing Assistant, every time we were planning to travel somewhere new, Galina would spend 3-4 weeks doing research. She would create a Word document with all of the information. We didn’t want to have to carry our laptop with us all the time, so we printed out the Word document she created, and would take it with us. After we returned from the trip, we would bring back tons of pictures and materials. Then our friends started to ask us about our materials before they planned their trips to the same places we had visited. So I decided to give it a try and started making apps for Windows Phone and for Windows 8. I hope these applications will help people who are planning to travel. So, all of the pictures used in the travel apps you created were actually taken by you during these amazing trips? Yes Do you have another Windows Store/Windows Phone project in development right now? If so, can you give us a hint at what it will be about? I want to stay with travel apps for now. But this time I will try to write an app for us (Galina and I). Usually we go on the trip, then I write the apps after we have all this beautiful pictures in our hands. We are planning a trip to Rome. This app will not have the pictures, but I want to add a map with points of interest and all information that can be useful for us. Then we will go on our trip and test it on location. As well I am planning to work on my existing apps to make them better. What learning resources would you recommend for other developers that want to get started in Window Store and Windows Phone development? I would start with dev.windowsphone.com to get all tools and samples, also links to training materials. I like MVA (Microsoft Virtual Academy). Their videos are really useful and it is free. Pluralsight is good too but it is not free and I do not have a subscription anymore. Our .NET User Group meetings give good insights too. I went to all meetings and full day training events. When you start to develop your app, you need to do research for specific questions that arise during development. The Developer Portal and Nokia Developer are good resources too. Wrap Up Thanks Nikolai for participating in my first Spotlight blog post! Shown below is Nikolai’s publisher page in the Windows Phone Store and his publisher page in the Windows Store. Simply click on it to be taken to there to check out his portfolio of apps. Be sure to download his apps and try them out! They are all free! Nikolai’s Windows Phone apps   Nikolai’s Windows Store Apps

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