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  • Part 4 of 4 : Tips/Tricks for Silverlight Developers.

    - by mbcrump
    Part 1 | Part 2 | Part 3 | Part 4 I wanted to create a series of blog post that gets right to the point and is aimed specifically at Silverlight Developers. The most important things I want this series to answer is : What is it?  Why do I care? How do I do it? I hope that you enjoy this series. Let’s get started: Tip/Trick #16) What is it? Find out version information about Silverlight and which WebKit it is using by going to http://issilverlightinstalled.com/scriptverify/. Why do I care? I’ve had those users that its just easier to give them a site and say copy/paste the line that says User Agent in order to troubleshoot a Silverlight problem. I’ve also been debugging my own Silverlight applications and needed an easy way to determine if the plugin is disabled or not. How do I do it: Simply navigate to http://issilverlightinstalled.com/scriptverify/ and hit the Verify button. An example screenshot is located below: Results from Chrome 7 Results from Internet Explorer 8 (With Silverlight Disabled) Tip/Trick #17) What is it? Use Lambdas whenever you can. Why do I care?  It is my personal opinion that code is easier to read using Lambdas after you get past the syntax. How do I do it: For example: You may write code like the following: void MainPage_Loaded(object sender, RoutedEventArgs e) { //Check and see if we have a newer .XAP file on the server Application.Current.CheckAndDownloadUpdateAsync(); Application.Current.CheckAndDownloadUpdateCompleted += new CheckAndDownloadUpdateCompletedEventHandler(Current_CheckAndDownloadUpdateCompleted); } void Current_CheckAndDownloadUpdateCompleted(object sender, CheckAndDownloadUpdateCompletedEventArgs e) { if (e.UpdateAvailable) { MessageBox.Show( "An update has been installed. To see the updates please exit and restart the application"); } } To me this style forces me to look for the other Method to see what the code is actually doing. The style located below is much easier to read in my opinion and does the exact same thing. void MainPage_Loaded(object sender, RoutedEventArgs e) { //Check and see if we have a newer .XAP file on the server Application.Current.CheckAndDownloadUpdateAsync(); Application.Current.CheckAndDownloadUpdateCompleted += (s, e) => { if (e.UpdateAvailable) { MessageBox.Show( "An update has been installed. To see the updates please exit and restart the application"); } }; } Tip/Trick #18) What is it? Prevent development Web Service references from breaking when Visual Studio auto generates a new port number. Why do I care?  We have all been there, we are developing a Silverlight Application and all of a sudden our development web services break. We check and find out that the local port number that Visual Studio assigned has changed and now we need up to update all of our service references. We need a way to stop this. How do I do it: This can actually be prevented with just a few mouse click. Right click on your web solution and goto properties. Click the tab that says, Web. You just need to click the radio button and specify a port number. Now you won’t be bothered with that anymore. Tip/Trick #19) What is it? You can disable the Close Button a ChildWindow. Why do I care?  I wouldn’t blog about it if I hadn’t seen it. Devs trying to override keystrokes to prevent users from closing a Child Window. How do I do it: A property exist on the ChildWindow called “HasCloseButton”, you simply change that to false and your close button is gone. You can delete the “Cancel” button and add some logic to the OK button if you want the user to respond before proceeding. Tip/Trick #20) What is it? Cleanup your XAML. Why do I care?  By removing unneeded namespaces, not naming all of your controls and getting rid of designer markup you can improve code quality and readability. How do I do it: (This is a 3 in one tip) Remove unused Designer markup: 1) Have you ever wondered what the following code snippet does? xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignWidth="640" d:DesignHeight="480" This code is telling the designer to do something special with this page in “Design mode” Specifically the width and the height of the page. When its running in the browser it will not use this information and it is actually ignored by the XAML parser. In other words, if you don’t need it then delete it. 2) If you are not using a namespace then remove it. In the code sample below, I am using Resharper which will tell me the ones that I’m not using by the grayed out line below. If you don’t have resharper you can look in your XAML and manually remove the unneeded namespaces. 3) Don’t name an control unless you actually need to refer to it in procedural code. If you name a control you will take a slight performance hit that is totally unnecessary if its not being called. <TextBlock Height="23" Text="TextBlock" />   That is the end of the series. I hope that you enjoyed it and please check out Part 1 | Part 2 | Part 3 if your hungry for more.  Subscribe to my feed CodeProject

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  • Where would you start if you were trying to solve this PDF classification problem?

    - by burtonic
    We are crawling and downloading lots of companies' PDFs and trying to pick out the ones that are Annual Reports. Such reports can be downloaded from most companies' investor-relations pages. The PDFs are scanned and the database is populated with, among other things, the: Title Contents (full text) Page count Word count Orientation First line Using this data we are checking for the obvious phrases such as: Annual report Financial statement Quarterly report Interim report Then recording the frequency of these phrases and others. So far we have around 350,000 PDFs to scan and a training set of 4,000 documents that have been manually classified as either a report or not. We are experimenting with a number of different approaches including Bayesian classifiers and weighting the different factors available. We are building the classifier in Ruby. My question is: if you were thinking about this problem, where would you start?

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  • Advantages of country TLD vs. .com

    - by Tschareck
    I want to get a domain for my site. The site's topic would be about Vienna, but the content will be in English. I was thinking, if I should get .com domain or .at domain. .at is both much cheaper and easier to get (there is less chance that my desired phrase is already registered). Is there any disadvantage in terms of SEO and page rank, if my domain does not end with .com? The site will be in English and targeted not just for Austria, but globally, mostly foreign tourists. I don't care if it's easy to remember the address, I expect most traffic to be from search engines anyway.

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  • Best practices for launching a new software version

    - by steve
    I rebuilt a web app to replace a version that we have been using for the last 3-4 years. We have a few thousand clients and a few hundred active users per day. The functionality is basically the same. The new version is a little bit faster with a few enhancement features and there are a lot of behind the scenes changes that the clients will never see. The UI is quite different but ultimately much easier to use and navigate. How should I go about having our clients stop using the old system and start using the new one? I am currently putting together a video that will play on the web site as well as within the app. The video will go through the pages and focus on some key changes. I was also thinking about an intro page that will display once the user logs in and explains some of the features.

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  • JavaScript malware analysis

    - by begueradj
    I want to test websites for JavaScript malware presence . I plan to develop a Python program that sends the URL of a given website to a virtual machine where the dynamic execution of the eventual malicious JavaScript embedded in the website's page is monitored. My questions: Should my VM be Windows or Linux ? What if the malware damages my VM: is there a hint how to avoid that ? Or launch a new VM automatically instead ? If I use telnet client library to communicate with the VM: must I implement a server within the VM to deal with my queries or can I overcome this ? I am jut looing for hints, general ideas. Thank you for any help.

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  • Why is there a 20 and not 21 in some versions of Planning Poker?

    - by SuffixTreeMonkey
    In Planning Poker, cards usually contain numbers of the Fibonacci sequence, which is 0,1,1,2,3,5,8,13,21,34,55 etc. However, you can see on the Wikipedia page (and this has been confirmed to me by people that work at several positions where Planning Poker is applied) in some editions the cards stray away from Fibonacci sequence after 13. They lower 21 to 20 and then continue with 40 and 100. Is there some rationale on why these values have been changed, specifically 21 to 20? (Also note that some other cards are added, such as ? and 1/2, but these are easier for me to understand, compared to the 21 - 20 shift.)

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  • MediaWiki plugin for dynamic content via forms

    - by Geek42
    Are there any plugins for MediaWiki that would allow me to create a page that has a form at the top that when filled in populates tags further down in the document? Say someone would put a form with "Source Server:" and "Destination Server:" fields at the top. Once those were typed in it would automatically populate those names into the content lower so that when following the instructions you could just read the docs and not have to mentally replace things, and possibly mess it all up. I'm not looking to make pages that are permanent, just ones that can have values entered before they are followed. Any suggestions?

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  • TechEd 2014 Day 4

    - by John Paul Cook
    Many people visiting the SQL Server booth wanted to know how to improve performance. With so much attention being given to COLUMNSTORE and in-memory tables and stored procedures, it is easy to overlook how important tempdb is to performance. Speeding up tempdb I/O improves performance. The best way to do this is to not do the I/O in the first place. With SQL Server 2014, tempdb page management is smarter. Pages are more likely to be released before being unnecessarily flushed to disk. Read more about...(read more)

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  • How to recover organic position in Google results after server down?

    - by ElHaix
    I have several sites that were doing quite well in terms of organic SEO rankings. I have the important sites setup in Google's Webmaster tools. Long story short, the system was down for about two weeks. Now in AdSense and Analytics, I am seeing that the page views are SLOWLY increasing. and I would like to know if there is anything I can do now to try to expedite the process of regaining those positions. Since there were several errors from that server, is it possible that Google will now rank any site from that IP address lower due to those two weeks of errors? Is this something that I just have to let ride out? Thanks.

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  • How to install Ubuntu using a USB stick?

    - by J. N.
    I cannot install Ubuntu 11.10 from a USB stick. It doesn't boot to Ubuntu page for installation but remains on Windows 7. I've downloaded the 11.10 version iso file and burnt it to a USB stick. After I inserted it, the USB stick is a symbol of Ubuntu installation and I clicked wubi to try to install it. But it didn't boot to Ubuntu but stayed on Win 7 after restart. It occurred error and said "windowsBackend" object has no attribut "cd_path" when I chose "Help me to boot from CD". I thought it's the problem of my computer model (acer travelmate 8481), but it can't boot on an old computer using XP as well. How can I solve this problem and install Ubuntu to replace Windows?

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  • How do I implement powerups for my Breakout clone?

    - by Eva
    I'm making a simple Breakout clone in Python that will have very many powerups/powerdowns (so far I came up with 26). Some will affect the paddle (paddle missile, two paddles, short paddle, etc.), some will affect the ball (slow ball, destructo-ball, invisible ball, etc.), some will affect the bricks (brick scramble, move up, bricks indestructible, etc.), and some will affect other game aspects (extra life, more points, less points, etc.). I'm pretty sure I have the code to draw the falling powerups and test for collisions with the paddle down, but I'm confused about how to code the effects of the powerups. Since there are very many powerups, it seemed inefficient to add specific methods to each component as done in this tutorial. However, I can't think of an other ways to implement the powerups. I found a page that hints at some way to design powerup behavior using classes, but I'm at a loss for how to do that. (A short example would help.) Please give me a short code example of another way to implement the effects of the powerups.

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  • Google doesn't index a subdomain. What can be the problem and what can be done?

    - by fudge
    I have a domain, let's call it example.com, which has a subdomain, games.example.com. I maintain a games forum using phpbbseo which is located at games.example.com/forum. The problem is that the forum is not being crawled. I used Google's webmaster tools and tested that the page is seen by google. P.S. There is a link from games.example.com to games.example.com/forum. What can I do? How can I make google crawl my forum?

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  • Help with google pages; using them in general

    - by Sugarcube
    Is there any way someone could help me with building a website using google pages? I cannot for the life of me figure out how to do much more than create a new page, and I have been up all night. I thought I knew computers and websites but apparently I need a refresher course. Please, if you can help, I would be most appreciative. -Sugarcube Edit: Seems this is too vague. But honestly, I don't even know where to begin with the way Google has it set up. I tried to set one up with a template and a layout, but the layout has pages that I did not create and that I don't know how to edit to make them suitable to my website. I guess if I had to start somewhere it would be on how to make it do what I want it to do.

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  • Tracking logged in vs. non-logged in users in Google Analytics

    - by Justin
    I am building a social media site that is similar is structure to twitter and facebook.com where unauthenticated users who go to https://mysite.com will see a login + sign-up page, and authenticated users who go to https://mysite.com will see their timeline. My question is, what is the best practice (using Google Analytics) for tracking these two different types of users who are viewing completely different content but are visiting the same URL. I tried searching the Google Analytics docs but couldn't find what they suggested for this scenario. Perhaps I just don't know what keywords to search for. Thanks in advance for any help.

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  • How to install kghostview

    - by feelfree
    In order to use kghostview, I download the page from here. After that, I run the following command: sudo dpkg -i kghostview_3.5.10-0ubuntu1~hardy1.1_i386.deb However, I have the following error messages: dpkg: dependency problems prevent configuration of kghostview: kghostview depends on gs; however: Package gs is not installed. kghostview depends on kdelibs4c2a (>= 4:3.5.8-1); however: Package kdelibs4c2a is not installed. kghostview depends on libqt3-mt (>= 3:3.3.8-b); however: Package libqt3-mt is not installed. dpkg: error processing kghostview (--install): dependency problems - leaving unconfigured It seems that I should also install some external packages such as gs, kdelibs4c2a and libqt3-mt. However, I do not have any idea of how to install them. I try the sudo apt-get install command, but fail. Any idea will be appreciated.

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  • Open a popup window from Silverlight

    - by Emanuele Bartolesi
    Silverlight has a method called HtmlPage.PopupWindow() that opens new web browser window with a specific page. You can find this method in the namespace System.Windows.Browser. If you haven’t in your project, add a reference to System.Windows.Browser. The method HtmlPage.PopupWindow() has three parameters: Uri – location to browse String – the target window HtmlPopupWindowOptions – a class with the window options (full list of properties http://msdn.microsoft.com/en-us/library/system.windows.browser.htmlpopupwindowoptions(v=vs.95).aspx) For a security reason of Silverlight the call to HtmlPage.PopupWindow() is allowed through any user input like a button, hyperlink, etc. The code is very simple: var options = new HtmlPopupWindowOptions {Left = 0, Top = 0, Width = 800, Height = 600}; if (HtmlPage.IsPopupWindowAllowed) HtmlPage.PopupWindow(new Uri("http://geekswithblogs.net/"), "new", options); The property IsPopupWindowAllowed is used to check whether the window is enabled to open popup.

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  • Trouble with FGLRX in quantal x86_64

    - by Dii Leoo
    it's the third time i have to reinstall quantal because the fglrx is making me sick. I have an ATI Mobility Radeon HD 4250 (the code ir RS880).When i install Ati Driver, i don't have any problems, but when i reboot, the resolution is minimal and the launcher isn't visible, i can only use the things that are in desktop and use the terminal using CTRL+ALT+T. i've tried to make specific distribution page, downloading the legacy driver from AMD, and another thing: when i had 12.04 jockey told me that i could install some drivers, i had trouble, but that doesn't matter. now, the option to install drivers doesn't tell me about any drivers, i mean, its blank. At the moment i'm using the free drivers (Gallium 0.4 on AMD RS880M. is there any alternative ? or i'll have to live with the free drivers ? Thanks a lot ! I KNOW I HAVE TO INSTALL LEGACY DRIVERS, I'VE INSTALLED THEM, THEY DON'T WORK.

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  • Un bug de la barre de recherche de Chrome 20 fait croire à un malware, comment y remédier

    Un bug de la barre de recherche de Chrome 20 fait croire à un malware Comment y remédier Depuis sa version 20, Chrome contient un bug assez ennuyeux : la barre de recherche mène automatiquement sur une page blanche. Le 1er réflexe de nombreux utilisateurs a été de penser que ce comportement était dû à un nouveau malware. En fait, il n'en est rien. Si vous faîtes partie de ceux qui se sont inquiétés, rassurez vous. La solution temporaire est très simple ? bien que laborieuse. Il suffit de supprimer "blank.html" de l'URL générée. Cette solution a été trouvée après 116 messages sur le Google Group dédié au problème. [IMG]http://ftp-developpez...

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  • Is there an open source solution that I can host on a web server that will allow users to anonymously upload a file to me?

    - by mjn12
    I'm looking for some kind of web application I can host on my Linux web server that will allow users to upload files of arbitrary size to me from their browser without requiring them to log in. Ideally this application would allow me to generate a link to my website that allowed for a one-time use upload. It might contain a unique, random key that was only good for that session. I could email them the link, they click it and are taken to a page where they can upload their file to me. I'm mainly targeting friends and family that need to send me files that are too large for email. I don't want to require them to install anything (dropbox), sign up and log in, etc. I'm definitely not teaching them to use FTP. This wouldn't be a difficult project for me to roll on my own but I'd like to take something off the shelf if it is possible. Does anything like this exist that my google-foo isn't turning up?

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  • Website with over 1 million posts with not much textual content

    - by Far Se
    I've made a website which crawls files from all over the Internet and I feel like Google will ban me if I sent it sitemaps which contain all of these pages (1m+), because they contain only the file name/size/no of downloads and the download link(s). I'm considering this thought because I've made another website like this in the past and Google banned me after one week with the reason: "spam", even it was not (maybe somebody falsely reported me?!). Does someone have an idea about how to keep Google form banning my website? I've seen several other sites like mine and they don't get banned or... anything. And also, should I sent the sitemap or wait until Google indexes every page as it finds them? Thanks in advance :)

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  • robots.txt dissalow url containing string with a '/' at the end

    - by thanili
    i have a website with thousands of dynamic pages. I want to use the robots.txt file in order to dissalow certain url patterns corresponding to pages with duplicate content. For example i have a page for article itemA belonging to category catA/subcatA, with URL: /catA/subcatA/itemA this is the URL that i want to be indexed from google. this article is also visible via tagging in various other places in the web site. The URLs produced via tagging is like: /tagA1/itemA this URL i want NOT to be indexed from google. However i want to have indexed all tag listings: /tagA1 so how can i achieve this? dissalow URLs of including a specific string with a '/' at the end? /tagA1/ itemA - dissalow /tagA1 - allow

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  • How to redirect visitors to the server that is closest to them and where to place the servers?

    - by user2971623
    I am focusing on providing fast page refreshes for my visitors and I wonder where is the smartest spot to place my servers on? I understand that the best would be to place a server in every country or even city, but that is of course not doable with my economy. I am thinking of maybe setting up three servers, one in the middle of USA (Kansas?), one in Italy and one in Sweden. What do you think about that? I don't care about Africa since they haven't even got computers so I won't get traffic from there anyway. China, North Korea etc are probably just visiting chinese websites, they barely know english anway... The next problem is how do I redirect a visitor from Finland to the Swedish server? I don't want the visitor from Finland to be using the USA server or vice versa.

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  • Multiple vulnerabilities in libexif

    - by Umang_D
    CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-2812 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 6.4 libexif Solaris 11 11/11 SRU 12.4 CVE-2012-2813 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 6.4 CVE-2012-2814 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 7.5 CVE-2012-2836 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 6.4 CVE-2012-2837 Numeric Errors vulnerability 5.0 CVE-2012-2840 Numeric Errors vulnerability 7.5 CVE-2012-2841 Numeric Errors vulnerability 7.5 CVE-2012-2845 Numeric Errors vulnerability 6.4 This notification describes vulnerabilities fixed in third-party components that are included in Oracle's product distributions.Information about vulnerabilities affecting Oracle products can be found on Oracle Critical Patch Updates and Security Alerts page.

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  • Why does the homepage rank in exact match and not in broad anymore? [closed]

    - by Claude Pelanne
    My website was ranking on page one for "walking shoes reviews" in broad and exact. It has disappeared in the rankings for broad and yet still ranks in exact match. No indication in the Webmaster tools of anything wrong yet Google analytics shows no more activity. his occurred sometime after Panda and Penguin. Not sure which because I didn't check closely for a while, this is a fun site for me. I walk for the enjoyment and health benefits so I built this site.

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  • How to use encypted home directory after reinstallation

    - by user15533
    I reinstalled Ubuntu on a machine with encrypted home directories. After that installation I have edited the fstab to boot the old home partition in /home. After doing so I can not login anymore with LDM. If I type my password, witch is the same as before, after a short moment of activity I am referred back to login page. I think this is due to the fact, that my home directory is not decrypted correctly. But I read here that this should work. What am I supposed to do?

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