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  • listview Header check-box

    - by Andy
    Hi , I'm having a windows form which contains listview control , where listView1.View = View.Details; and listView1.CheckBoxes = true; then added a column with HeaderName as "FileName". listView1.Columns.Add("File Name", 200, HorizontalAlignment.Left); Here I would like to have check box in the Header of listview , ie FileName. Can anyone help me with this. Thanks in advance. andy

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  • What's the best way to mix Ruby and other languages? (Especially C++)

    - by Andy
    Hi, I'm learning Ruby, and I'm starting to play with building extensions in C. I have Programming Ruby The Pragmatic Programmers' Guide and so I can follow that for the basic nuts and bolts. What I was wondering is if there already existed some nifty frameworks/whatever to help interoperability between Ruby and other languages, with C++ being the most important for me. I've tried googling, but the results focus on language comparisons, rather than language interoperability. TIA, Andy

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  • Inter process communication C# <--> C++ for game debugging engine.

    - by Andy
    I am working on a debugger project for a game's scripting engine. I'm hoping to write the debugger's GUI in C#. The actual debugging engine, however, is embedded in the game itself and is written in a mixture of C, C++, and assembly patches. What's the best way to handle communication between the debugger GUI and the debugging engine? The two will be running in separate processes. Thanks! Andy

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  • Is there a bash shortcut for traversing similar directory structures?

    - by Steve Weet
    The Korn shell used to have a very useful option to cd for traversing similar directory structures e.g. given the following directorys /home/sweet/dev/projects/trunk/projecta/app/models /home/andy/dev/projects/trunk/projecta/app/models Then if you were in the /home/sweet.... directory then you could change to the equivalent directory in andy's structure by typing cd sweet andy So if ksh saw 2 arguments then it would scan the current directory path for the first value, replace it with the second and cd there. Is anyone aware of similar functionality in bash. EDIT 1 Following on from Michal's excellent answer I have now created the following bash function called scd (For Sideways cd) function scd { cd "${PWD/$1/$2}" } EDIT 2 Thanks to @digitalross I can now reproduce the ksh functionality exactly with the code from below (With the addition of a pwd to tell you where you have changed to) cd () { if [ "x$2" != x ]; then builtin cd ${PWD/$1/$2} pwd else builtin cd "$@" fi }

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  • SQL: Find difference between dates with grouping

    - by ajbeaven
    I have a problem that seems similar to this fellow - I just want to display the data slightly differently. I'm pretty terrible with SQL so can't modify it to suit, but perhaps someone else can. My table looks similar to this (date format is dd/mm/yyyy): ID User Date_start Role 1 Andy 01/04/2010 A 2 Andy 10/04/2010 B 3 Andy 20/04/2010 A 4 John 02/05/2010 A I want to show the total number of days that anyone was in a certain role. Users stay in the role until there is another entry into the table. Users can only be in one role at a time. So the summary data would look like this (assuming that the date is 04/05/2010): A: 26 days B: 10 days Thanks for any help :)

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  • Exchange 2007 restore - Backup Exec Unable to Attach to a resource

    - by Andy
    I have been struggling with this one for months! Grateful for any advice. The setup is a windows 2003 server network, 4xservers on the domain. Two exchange 2007 servers (only one with mailboxes still on). Backup Exec (12.5) on a non-exchange server with agents on the others. Backup exec runs a full backup of exchange across the network well, at pretty reasonable speeds. However, when you try any kind of restore (individual emails, mailboxes or whole system restore - all to same location or to alternate server, RSG etc) the following message is received within about 10-15 secs of starting the job: Job ended: 24 December 2010 at 13:28:32 Completed status: Failed Final error: 0xe000848c - Unable to attach to a resource. Make sure that all selected resources exist and are online, and then try again. If the server or resource no longer exists, remove it from the selection list. Edit the selection list properties, click the View Selection Details tab, and then remove the resource. Final error category: Resource Errors For additional information regarding this error refer to link V-79-57344-33932 Things I have already tried: Changed account to main administrator account (with all permissions) checked versions of ese.dll on both servers - both the same Checked all VSS writers on both servers are stable / normal restoring to different locations Any advice anyone could give would be much appreciated. Many thanks, Andy

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  • Error 720 on VPN (PPTP) attempt

    - by Andy Shulman
    When I attempt to connect to a server running XP x64 (so essentially Server 2003) using a PPTP connection, it fails with client-side error Registering your computer on the network... Error 720: A connection to the remote computer could not be established. You might need to change the network settings for this configuration. and server-side error Event ID: 20050 The user WINSERV3\Andy connected to port VPN8-1 has been disconnected because no network protocols were successfully negotiated. I have configured the router to pass both TCP packets on 1723 and GRE packets. I have used Wireshark (filtering out ARP, UDP, and all TCP ports other than 1723) to observe the packets received by the server. Wireshark does not explicitly name any protocol GRE, but it does tell me the server sent and received TCP, PPTP, PPP LCP, PPP CHAP, PPP CBCP, and PPP IPCP. The connection seems to go wrong at packet 30, where the protocol is PPP LCP, with the payload of the packet being labeled "Protocol Reject". Obviously, this is going from server to client. This would seem to lead to the conclusion that there is something wrong with my client, which runs Windows 7 Ultimate x64. However, it is able to connect to my house's router, which runs the DD-WRT firmware and is thus a PPTP endpoint. I'm thoroughly at a loss. Please help!

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  • sendmail relay status

    - by Andy
    Hello all, I have a RHEL3 server with sendmail configured to relay mail to: # "Smart" relay host (may be null) DSmailrelay This relay server is an exchange server not administered by me. A few days ago its IP address was changed without my knowledge so I've updated the correct ip in /etc/hosts for the mail relay entry. Unfortunately no mail is currently going through and maillog reports: Oct 26 14:32:39 fsimag sendmail[12580]: n9Q3VxPA012580: from=root, size=3685, class=0, nrcpts=1, msgid=<~R.*.2009102614315955@*>, relay=root@localhost Oct 26 14:32:39 fsimag sendmail[12580]: n9Q3VxPA012580: to=wodwest@*.net, delay=00:00:40, mailer=esmtp, pri=33685, dsn=4.4.3, stat=queued Oct 26 14:36:09 fsimag sendmail[13670]: n9Q3ZTcf013670: from=root, size=5831, class=0, nrcpts=1, msgid=<~R.medicus.2009102614352914@*>, relay=root@localhost Oct 26 14:36:09 fsimag sendmail[13670]: n9Q3ZTcf013670: to=tsgastro@(.net, delay=00:00:40, mailer=esmtp, pri=35831, dsn=4.4.3, stat=queued Oct 26 14:36:50 fsimag sendmail[13882]: n9Q3aAxj013882: from=root, size=5830, class=0, nrcpts=1, msgid=<~C.medicus.2009102614361009@*>, relay=root@localhost Oct 26 14:36:50 fsimag sendmail[13882]: n9Q3aAxj013882: to=elmwood@*.net, delay=00:00:40, mailer=esmtp, pri=35830, dsn=4.4.3, stat=queued (With domains obscured) The mailq command shows nothing, and I've also tried connecting to this new mail server via telnet and manually sending and reports as being queued but not sent. The administrator of this machine has put it back to me saying he sees no problems, and I just want to cover everything before passing it back to him. Is there any other tests/logs/reasons for sendmail to only report it as "stat=queued" ? I've looked in previous logs and the relay is set to root@localhost in those but none were ever set to queued. Thanks for any help, Andy

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  • 3 Servers, is this is a cluster?

    - by Andy Barlow
    Hello, At the moment I have one Ubuntu server, 9.10, running with a simple Samba share, a mail server, DNS server and DHCP server. Mostly its just there for file sharing and email server. I also have 2 other servers that are exactly the same hardware and spec as the first, which have an rsync set up to retrieve the shared folders and backs them up. However, if the first server goes down, all of our shares disappear along with our mail and the system must be rebuilt. Also I tend to find if people are downloading a large amount from the file server, no-one can access there emails - especially in the morning when everyone is signing in at once. Would it be more beneficial for me to have all 3 servers, all running the same services, doing the same thing with some sort of cluster with load balancing? I'm not really sure where to begin looking, or how to go about such a setup where 3 servers are all identical, but perhaps one acts as the main load balancer?? If someone can point me in the right direction, or if this simply sounds like one of those Enterprise Cloud's that is now a default setup in Ubuntu Server 9.10+, then I'll go down that route. Cheers in advance. Andy

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  • Issues with creating a snapshot

    - by Andy Welcomer
    Hello everyone, We have a strange issue when attempting to create a snapshot in one of our regional environments. We have 4 VMs, 2 of them have mulitple VMDKs spread onto different datastores. When a snapshot is created, all the VMDKs (except for the first), seem to vanish. If you look at the properties of the VM, the path to the VMDKS points to the datastore where the primary VMDK is, and the file name is some random garbage. If the snapshot is deleted everything returns to normal. Has anyone ever seen this? I'm using ESX3.5 Thank you in advance. Andy ==============UPDATE============== Here is some more information. I just created a test machine with 7 VMDKs. 1 for the OS. and 6 others for data. All of the VMDKs are in seperate datastores. I take a snapshot of the machine, all of the 6 VMDKs loose their reference to the actual VMDK files. The all point to 64KB VMDK files in the datastore where the OS VMDK is located. These 64KB vmdks didn't exist until the snapshot was taken. When the snapshot is deleted, everything goes back to normal.

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  • Kickstart CentOS 6 prompting for TCP/IP with network set to DHCP

    - by Andy Shinn
    I am trying to stop my kickstart CentOS install prompting me for TCP/IP information. After I click through this prompt (keeping IPv4 and IPv6 to their defaults) the installation continues and completes just fine. Below is my kickstart file: # Andy's super awesome VM kickstart file install url --url=http://mirrors.kernel.org/centos/6/os/x86_64 lang en_US.UTF-8 keyboard us text %include /tmp/network.ks rootpw --iscrypted $6$RA8DyrNTsVJkGIgY$ohZ62HHiOjNnn1yDMZlIu3lQ63D3plGPcbVZtPKE8Oq6Z.IGUgN.kNLkxs/ZymZuluRDWsW2eey5zLOl2G3mp. firewall --service=ssh authconfig --enableshadow --passalgo=sha512 selinux --disabled timezone America/Los_Angeles bootloader --location=mbr --driveorder=vda --append="crashkernel=auto rhgb quiet" # The following is the partition information you requested # Note that any partitions you deleted are not expressed # here so unless you clear all partitions first, this is # not guaranteed to work zerombr clearpart --all --drives=vda --initlabel part /boot --fstype=ext4 --size=500 part pv.253002 --grow --size=1 volgroup vg1 --pesize=4096 pv.253002 logvol / --fstype=ext4 --name=lv_root --vgname=vg1 --grow --size=1024 --maxsize=51200 logvol swap --name=lv_swap --vgname=vg1 --grow --size=4032 --maxsize=4032 repo --name="CentOS" --baseurl=http://mirrors.kernel.org/centos/6/os/x86_64 --cost=100 repo --name="Puppet Labs Products" --baseurl=http://yum.puppetlabs.com/el/6/products/x86_64 repo --name="Puppet Labs Dependencies" --baseurl=http://yum.puppetlabs.com/el/6/dependencies/x86_64 repo --name="EyeFi" --baseurl=http://flexo.eye.fi/6/eye-fi-api %packages @core @server-policy puppet facter %end %pre --erroronfail #!/bin/bash for x in `cat /proc/cmdline`; do case $x in SERVERNAME*) eval $x echo "network --onboot yes --device eth0 --bootproto dhcp --hostname ${SERVERNAME}.eye.fi" /tmp/network.ks ;; esac; done %end %post puppet agent --waitforcert 10 --onetime --no-daemon --pluginsync --server puppet.eye.fi %end reboot My kernel arguments are in this following virt-install command that I use to start the install: virt-install -n zabbix -r 2048 --vcpus=2 -l http://mirrors.kernel.org/centos/6/os/x86_64 --disk /dev/vg_inf1/zabbix --network bridge=br85 --initrd-inject=/home/ashinn/vm_kickstart --extra-args "ks=file:/vm_kickstart SERVERNAME=zabbix" --autostart During the install, I can pull up a console on the second terminal and verify the contents of /tmp/network.ks are: network --onboot=yes --bootproto=dhcp --ipv6=auto --hostname=jenkins2.mydomain.com Why might Anaconda be prompting for the TCP/IP settings when they are already set to DHCP?

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  • Are my Linux symbolic links acting correctly?

    - by Andy Castles
    Hi all I've been using Linux on and off for the last 15 years and today I came across something in bash that surprised me. Setup the following directory structure: $ cd /tmp $ mkdir /tmp/symlinktest $ mkdir /tmp/symlinktest/dir $ mkdir /tmp/symlinktarget Now create two sym links in symlinktest pointing to symlinktarget: $ cd /tmp/symlinktest $ ln -s ../symlinktarget Asym $ ln -s ../symlinktarget Bsym Now, in bash, the following tab completion does strange things. Type the following: $ cd dir $ cd ../A[TAB] Pressing the tab key above completes the line to: $ cd ../Asym/ as I expected. Now press enter to change into Asym and type: $ cd ../B[TAB] This time pressing the tab key completes the link to: $ cd ../Bsym[space] Note that there is now a space after the Bsym and there is no trailing slash. My question is, why when changing from the physical directory "dir" to Asym it recognises that Asym is a link to a directory, but when changing from one sym link to another, it doesn't recognise that it's a link to a directory? In addition, if I try to create a new file within Asym, I get an error message: $ cd /tmp/symlinktest/Asym $ cat hello > ../Bsym/file.txt -bash: ../Bsym/file.txt: No such file or directory I always thought that symlinks were mostly transparent except to programs that need to manipulate them. Is this normal behaviour? Many thanks, Andy

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  • Walk me through the Linux log files (please)

    - by Andy
    Hey all, I just tried loading a 2MB file in gedit and it silently died on me. I was wondering if anything might appear in a log file that might help me diagnose this: I checked syslog and found out it segfaulted. While doing this I realised that I don't really know anything about how logging is organised on *nix machines. All I know at the mo is Logs are typically stored in /var/log/... is there anywhere else that I should know about? I'm familiar with application specific logs, such as apache's. I understand that dmesg is the bootup log, and syslog is a general system log... is that right? So would someone mind taking me through the most useful logs? Are the two logs I mention in the final point the only general logs? And what are the funky numbers at the start of lines in dmesg? Seconds since startup? Please include anything in your answers that you think would improve my understanding here and help me track down anomalies! TIA Andy

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  • How to remove a node based on contents of a subnode and then convert to CSV with headers intact

    - by Morris Cox
    I'm downloading a 10MB zipped XML file with wget, unzipping it to 40MB, trying to weed out test and expired entries (if the text of a certain node is "This is a test opportunity. Please DO NOT apply!" or if is in the past), and then convert to CSV. However, I get this error: PHP Notice: Array to string conversion in /home/morris/projects/grantsgov/xml2csv.php on line 46 I get Array errors because some entries in the XML file have more than one occurrence of a node (different text contents). The test entries are still present. Contents of grantsgov.sh: #!/bin/bash wget --clobber "http://www.grants.gov/search/downloadXML.do;jsessionid=1n7GNpNF2tKZnRGLyQqf7Tl32hFJ1zndhfQpLrJJD11TTNzWMwDy!368676377?fname=GrantsDBExtract$(date +'%Y%m%d').zip" -O GrantsDBExtract$(date +"%Y%m%d").zip unzip GrantsDBExtract$(date +"%Y%m%d").zip php xml2csv.php zip GrantsDBExtracted$(date +"%Y%m%d").zip GrantsDBExtracted$(date +"%Y%m%d").csv Contents of xml2csv.php: <? $current_date = date("Ymd"); //$getfile=fopen("http://www.grants.gov/search/downloadXML.do;jsessionid=GqJNNmdLyJyMlsQqTzS2KdzgT5NMdhPp0QhG946JTmHzRltNTpMQ!368676377?fname=GrantsDBExtract$current_date.zip", "r"); $zip = zip_open("GrantsDBExtract$current_date.zip"); if(is_resource($zip)) { while ($zip_entry = zip_read($zip)) { $fp = fopen("./".zip_entry_name($zip_entry), "w"); if (zip_entry_open($zip, $zip_entry, "r")) { $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry)); fwrite($fp,"$buf"); zip_entry_close($zip_entry); fclose($fp); } } zip_close($zip); } // For future potential use $xml = new DOMDocument('1.0', 'ascii'); $xpath = new DOMXpath($xml); $xslFile = "feddata.xsl"; $filexml="GrantsDBExtract$current_date.xml"; if (file_exists($filexml)) { $xml = simplexml_load_file($filexml); echo "Loaded $filexml\n"; $xslt = new XSLTProcessor(); $xsl = new DOMDocument(); //$XSL->load('feddata.xsl', LIBXML_NOCDATA); $xsl->load($xslFile, LIBXML_NOCDATA); $xslt->importStylesheet($xsl); $xslt->transformToXML($xml); $f = fopen("GrantsDBExtracted$current_date.csv", 'w'); // create the CSV header row on the first time here $first = FALSE; $fields = array(); foreach($record as $key => $value) { $fields[] = $key; } fwrite($f,implode(";",$fields)."\n"); foreach ($xml->FundingOppSynopsis as $fos) { fputcsv($f, get_object_vars($fos),',','"'); } } fclose($f); } else { exit('Failed to open file.'); } ?> Contents of feddata.xsl: <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method="xml"/> <xsl:template match="node()|@*"> <xsl:copy> <xsl:apply-templates select="node()|@*"/> </xsl:copy> </xsl:template> <xsl:template match="FundingOppSynopsis[AgencyMailingAddress = 'This is a test opportunity. Please DO NOT apply!']"> </xsl:template> </xsl:stylesheet><xsl:strip-space elements="*"/> Part of the XML file: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE Grants SYSTEM "http://www.grants.gov/search/dtd/XMLExtract.dtd"> <Grants> <FundingOppSynopsis> <PostDate>08312007</PostDate> <UserID>None</UserID> <Password>None</Password> <FundingInstrumentType>CA</FundingInstrumentType> <FundingActivityCategory>DPR</FundingActivityCategory> <OtherCategoryExplanation>This is a test opportunity. Please DO NOT apply!</OtherCategoryExplanation> <NumberOfAwards>5</NumberOfAwards> <EstimatedFunding>4</EstimatedFunding> <AwardCeiling>2</AwardCeiling> <AwardFloor>1</AwardFloor> <AgencyMailingAddress>This is a test opportunity. Please DO NOT apply!</AgencyMailingAddress> <FundingOppTitle>This is a test opportunity. Please DO NOT apply!</FundingOppTitle> <FundingOppNumber>IVV-08312007-RG-OPP5</FundingOppNumber> <ApplicationsDueDate>09102007</ApplicationsDueDate> <ApplicationsDueDateExplanation>This is a test opportunity. Please DO NOT apply!</ApplicationsDueDateExplanation> <ArchiveDate>10102007</ArchiveDate> <Location>None</Location> <Office>None</Office> <Agency>None</Agency> <FundingOppDescription>This is a test opportunity. Please DO NOT apply!</FundingOppDescription> <CFDANumber>000000</CFDANumber> <EligibilityCategory>21</EligibilityCategory> <AdditionalEligibilityInfo>This is a test opportunity. Please DO NOT apply!</AdditionalEligibilityInfo> <CostSharing>N</CostSharing> <ObtainFundingOppText FundingOppURL="">Not Available</ObtainFundingOppText> <AgencyContact AgencyEmailDescriptor="This is a test opportunity. Please DO NOT apply!" AgencyEmailAddress="This is a test opportunity. Please DO NOT apply!">This is a test opportunity. Please DO NOT apply!</AgencyContact> </FundingOppSynopsis> How can I fix the error and remove expired entries (based on ArchiveDate)? I suspect the second to last line in feddata.xsl needs to be fixed.

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  • Is 'Old-School' the Wrong Way to Describe Reliable Security?

    - by rickramsey
    source The Hotel Toronto apparently knows how to secure its environment. "Built directly into the bedrock in 1913, the vault features an incredible 4-foot thick steel door that weighs 40 tonnes, yet can nonetheless be moved with a single finger. During construction, the gargantuan door was hauled up Yonge Street from the harbour by a team of 18 horses. " 1913. Those were the days. Sysadmins had to be strong as bulls and willing to shovel horse maneur. At least nowadays you don't have to be that strong. And, if you happen to be trying to secure your Oracle Linux environment, you may be able to avoid the shoveling, as well. Provided you know the tricks of the trade contained in these two recently published articles. Tips for Hardening an Oracle Linux Server General strategies for hardening an Oracle Linux server. Oracle Linux comes "secure by default," but the actions you take when deploying the server can increase or decrease its security. How to minimize active services, lock down network services, and many other tips. By Ginny Henningsen, James Morris and Lenz Grimmer. Tips for Securing an Oracle Linux Environment System logging with logwatch and process accounting with psacct can help detect intrusion attempts and determine whether a system has been compromised. So can using the RPM package manager to verifying the integrity of installed software. These and other tools are described in this second article, which takes a wider perspective and gives you tips for securing your entire Oracle Linux environment. Also by the crack team of Ginny Henningsen, James Morris and Lenz Grimmer. - Rick Website Newsletter Facebook Twitter

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  • Silverlight Cream for January 03, 2011 -- #1021

    - by Dave Campbell
    In this all-Submittal Issue: Gill Cleeren(-2-), Brian Noyes, Brian Genisio, René Schulte, and Andy Schwam(-2-). Above the Fold: Silverlight: "The INavigationContentLoader interface in Silverlight 4" Gill Cleeren WP7: "Sending Windows Phone Screenshots in an Email" René Schulte WCF RIA Services: "WCF RIA Services Part 10 - Exposing Domain Services To Other Clients" Brian Noyes Shoutouts: Want to know what it takes to be an MVP? Check out René Schulte's recap of 2010: Goodbye 2010 - Hello 2011 ... awesome, René! Rui Marinho sent me this post... it's WPF, but wow... WPF and Kinect! Kinect & WPF From SilverlightCream.com: The INavigationContentLoader interface in Silverlight 4 Gill Cleeren has a couple posts up... this first is a break-out of the INavigationContentLoader... what all can be done with it, in addition to the flow of the page load process broken out. Working with the RaiseCanExecuteChanged in MVVM Light (Silverlight) Gill Cleeren' latest post is a discussion of the Silverlight ICommand interface and Laurent Bugnion's RaiseCanExecuteChanged in MVVM Light, with example code. WCF RIA Services Part 10 - Exposing Domain Services To Other Clients Brian Noyes has Part 10 in his WCF RIA Services Tutorial series up at SilverlightShow ... with info on, for example, exposint an OData, SOAP, or REST/JSON endpoint, or how to consume them. Cross-Training in Silverlight & Flex–MVVM vs Presentation Model Brian Genisio finished the year off with this post in his on-going Silverlight/Flex seris comparing MVVM vs Presentation Model .. lots of good MVVM/ViewModel tips and code in this post. Sending Windows Phone Screenshots in an Email René Schulte is the perfect guy to be doing this... how about emailing a screenshot directly from inside an app, for instance Laurent's taking a screenshot from inside an app... too cool, Rene! Windows Phone 7 Application Development Tips Andy Schwam has a post up with tips he learned while creating his first WP7 app... lots of good tips, Gestures, Camera, ISO... check it out, could save you some time and tears :) WP7 Tip: Using the CameraCaptureTask for Windows Phone 7 Andy Schwam's most recent post is WP7 dev as well, and has a bunch of tips and code for using the camera, such as capturing an image, resizing, saving... good stuff. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • Gartner PCC Summit, Baltimore - Oracle's Take

    - by [email protected]
    Back from last week's trip to the Gartner PCC Summit in Baltimore, Andy MacMillan and Ajay Gandhi share their impressions of the conference. According to Andy and Ajay: Interest in the sector is increasing - attendance at this year's conference was up by more than 50 percent The discussion at the conference this year shifted from a focus on what the tools are to how the tools can transform organizations and help build businesses Conference attendees were interested in taking a platform approach and looking to bring multiple tools together to solve problems and simplify business processes. If you are interested in learning more about the Bureau of Indian Affairs' deployment showcased in Ajay's session at the Gartner PCC Summit, come back soon - a detailed post is on its way.

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  • ATG Live Webcast March 21 Reminder: Network, WAN, and PC Performance Tuning (Performance Series Part 3 of 3)

    - by BillSawyer
    A quick reminder about tomorrow's webcast:  Andy Tremayne, Senior Architect, Applications Performance, and co-author of Oracle Applications Performance Tuning Handbook from Oracle Press, and Uday Moogala, Senior Principal Engineer, Applications Performance, will discuss network performance for E-Business Suite. Andy and Uday will cover tuning the client and tuning the network. They will share real-life examples of network performance, and show you tools and techniques that you can use to estimate or simulate performance on your own network.The agenda for the Performance Tuning - Part 3 of 3 webcast includes the following topics: Tuning the Client Tuning the Network Date:               Thursday, March 21, 2012Time:              8:00 AM - 9:00 AM Pacific Standard TimePresenters:  Andy Tremayne, Senior Architect, Applications Performance                        Uday Moogala, Senior Principal Engineer, Applications PerformanceWebcast Registration Link (Preregistration is optional but encouraged)To hear the audio feed:   Domestic Participant Dial-In Number:           877-697-8128    International Participant Dial-In Number:      706-634-9568    Additional International Dial-In Numbers Link:    Dial-In Passcode:                                              99341To see the presentation:    The Direct Access Web Conference details are:    Website URL: https://ouweb.webex.com    Meeting Number:  591264961If you miss the webcast, or you have missed any webcast, don't worry -- we'll post links to the recording as soon as it's available from Oracle University.  You can monitor this blog for pointers to the replay. And, you can find our archive of our past webcasts and training here.

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  • Can You Name the Top 10 Technology Trends?

    - by kellsey.ruppel
    Can You Name the Trends? No need to do the research. Come to this Webcast and find out. Join the conversation as Andy Mulholland, Global CTO, Capgemini, discusses the 10 game-changing technology trends that will enable business innovation. As you might expect, three of the trends discussed will be: Mobility: from nice-to-have to a cornerstone of user engagement Big data: how to acquire, organize, and analyze it Cloud computing: how to build applications, automate processes, collaborate, and secure the enterprise But you’ll have to attend the Webcast to learn about the other seven trends. Register now. And profit from the experience. REGISTER NOW Thurs., July 19, 201210 a.m. PT / 1 p.m. ET Presented by: Andy MulhollandGlobal CTO, Capgemini Christian FinnSenior Director, Oracle WebCenter Product Management, Oracle Copyright © 2012, Oracle. All rights reserved. Contact Us | Legal Notices and Terms of Use | Privacy Statement

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  • Oracle VDI Seminar - June-30

    - by mprove
    More from Andy Hall about Oracle VDI:  Oracle Virtual Desktop Infrastructure allows you to bring your desktop environments under control by hosting and managing them centrally in the data center. Users then connect to their desktops over the network using their existing PCs and simple client software, or with Oracle's Sun Ray Clients. Virtual desktops provide a number of benefits, including:  Cost reductions by allowing global or local changes and updates to the desktop environment from a centralized management location.  Better security by keeping sensitive data off of individual computers and retaining it safely in the data center.  Improved availability and business continuity because workers can access their desktops from nearly anywhere.  Join us to get the latest updates on Oracle Virtual Desktop Infrastructure and learn how moving to a virtualized desktop environment can help your organization, today and into the future.  Speaker:  Andy Hall - Virtual Desktop Infrastructure Product Management, Oracle Event Date: 06/30/2011 09:00 AM Pacific Daylight Time Register here_

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  • How can I centralise MySQL data between 3 or more geographically separate servers?

    - by Andy Castles
    To explain the background to the question: We have a home-grown PHP application (for running online language-learning courses) running on a Linux server and using MySQL on localhost for saving user data (e.g. results of tests taken, marks of submitted work, time spent on different pages in the courses, etc). As we have students from different geographic locations we currently have 3 virtual servers hosted close to those locations (Spain, UK and Hong Kong) and users are added to the server closest to them (they access via different URLs, e.g. europe.domain.com, uk.domain.com and asia.domain.com). This works but is an administrative nightmare as we have to remember which server a particular user is on, and users can only connect to one server. We would like to somehow centralise the information so that all users are visible on any of the servers and users could connect to any of the 3 servers. The question is, what method should we use to implement this. It must be an issue that that lots of people have encountered but I haven't found anything conclusive after a fair bit of Googling around. The closest I have seen to solutions are: something like master-master replication, but I have read so many posts suggesting that this is not a good idea as things like auto_increment fields can break. circular replication, this sounded perfect but to quote from O'Reilly's High Performance MySQL, "In general, rings are brittle and best avoided" We're not against rewriting code in the application to make it work with whatever solution is required but I am not sure if replication is the correct thing to use. Thanks, Andy P.S. I should add that we experimented with writes to a central database and then using reads from a local database but the response time between the different servers for writing was pretty bad and it's also important that written data is available immediately for reading so if replication is too slow this could cause out-of-date data to be returned. Edit: I have been thinking about writing my own rudimentary replication script which would involve something like having each user given a server ID to say which is his "home server", e.g. users in asia would be marked as having the Hong Kong server as their own server. Then the replication scripts (which would be a PHP script set to run as a cron job reasonably frequently, e.g. every 15 minutes or so) would run independently on each of the servers in the system. They would go through the database and distribute any information about users with the "home server" set to the server that the script is running on to all of the other databases in the system. They would also need to suck new information which has been added to any of the other databases on the system where the "home server" flag is the server where the script is running. I would need to work out the details and build in the logic to deal with conflicts but I think it would be possible, however I wanted to make sure that there is not a correct solution for this already out there as it seems like it must be a problem that many people have already come across.

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