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  • Visual Studio Talk Show #117 is now online - Microsoft Surface (French)

    http://www.visualstudiotalkshow.com Simon Ferquel et Thomas Lebrun: Microsoft Surface Nous discutons avec Simon Ferquel et Thomas Lebrun du systme informatique "Surface". Surface se prsente l'utilisateur comme une table dont le dessus est constitu d'une surface dot dun affichage tactile "multitouch" qui permet de manipuler un contenu informatique l'aide d'un cran tactile. Thomas Lebrun est architecte et dveloppeur chez Access IT Paris. Il est particulirement intress...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Visual Studio Talk Show #116 is now online - Les nouveautés de la conférence MIX 2010 (French)

    - by guybarrette
    http://www.visualstudiotalkshow.com Laurent Duveau: Les nouveautés de la conférence MIX 2010 Nous discutons avec Laurent Duveau des nouveautés annoncées dans le cadre de la conférence MIX 2010 à laquelle Laurent a assisté. MIX est une conférence tenue annuellement pour les développeurs et les designers Web qui présente les dernières nouveautés produites par Microsoft pour la programmation Internet. Laurent Duveau est un consultant et formateur pour la firme RunAtServer Consulting. Il se spécialise dans un domaine qu'il adore: les applications web avec Silverlight et l'outillage Microsoft Expression. Laurent est certifié MCSD.NET, MCTS, MCPD et MCT. Il participe fréquemment aux activités de la Communauté .NET de Montréal. Il est également l'auteur d'articles techniques pour TechHeadBrothers et asp.net et contribue activement aux forums asp.net. Pour la quatrième année consécutive, il a obtenu de Microsoft le titre de MVP. Et cette année, il est parmi les premiers récipiendaire de la reconnaissance MVP Silverlight. Suivez son blog ou il écrit sur les nouveautés de Silverlight. Télécharger l'émission Si vous désirez un accès direct au fichier audio en format MP3, nous vous invitons à télécharger le fichier en utilisant un des boutons ci-dessous. Si vous désirez utiliser le feed RSS pour télécharger l'émission, nous vous invitons à vous abonnez en utilisant le bouton ci-dessous. Si vous désirez utiliser le répertoire iTunes Podcast pour télécharger l'émission, nous vous encourageons à vous abonnez en utilisant le bouton ci-dessous. var addthis_pub="guybarrette";

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  • rumtime error 424 on comm port

    - by Neha Hafeez
    I am trying to rectify this problem which i am facing on Visual Basic 6.0. my devices connected on Comm port are not detected simultaneously on visual Basic. Erroor msg displayed on this line of code: MSComm5.PortOpen = True HELP

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  • regarding the Windows Phone 7 series, XNA and Visual Basic

    - by Chris Williams
    as long as we're talking about VB... I figured I would share this as well. Hi everyone, I'm about to express a sentiment that might ruffle a few feathers, but I think most of you know me well enough to know I love like accept VB for what it is and that what I'm about to say is with good intentions. (The rest of you, who don't know me, please take my word for it.) The world is full of VB developers, I was one of them for a long time. I think it's safe to assume that none of us are ignorant people who require handholding. We're working professionals, making a living by using our skills as developers. I'm also willing to bet that quite a few of us are fluent in C# as well as VB. It may not be your preferred language, but many of you can do it and you prove that nearly every day. Honestly, I don't know ANY developers or consultants that have only known ONE language ever. So it pains me greatly when I see the word "CAN'T" being tossed around like a crutch... as in "we CAN'T develop for the windows phone or we CAN'T develop XNA games." At MIX, Microsoft hath decreed that C# is the language of choice for developing for the Windows Phone 7. I think it's a safe bet that you won't see VB support if it isn't there already. (Just like XNA... which is up to version 4.0 by now.)  So what? (Yeah... I said it.) I think everyone here can agree that actual coding is only one part of software design and development. There is nothing stopping ANY of you from beginning the process of designing your killer phone app, writing up specs, requirements, doing UI design, workflow, mockups, storyboards, art, etc.... None of these things are language dependent. IF by the time you've got that stuff out of the way, and there's still no VB support, then start doing some rapid prototyping of your app in C# (I know, I know... heresy!)  You still have to spend time learning how the phone does things, what UI tricks do what, what paradigms make sense, how to use to accelerometer and the tilt and the multitouch functionality. I can guarantee you that time spent doing this is a great investment, no matter WHAT extension your code files have. Eventually, you may have a working prototype. IF by this time, there's STILL no VB support... fret not, you've made significant progress on your app. You've designed it, prototyped it, figured out how to use the phone specific features... so you might as well finish it and pat yourself on the back for learning something new... and possibly being first to market with your new app. I'll be happy to argue any and all of these points online or off with anyone who cares to do so, but there is one undeniable point that you simply can't argue:  Your potential customers do not care AT ALL what programming language you used to write the app they are about to purchase. They care that it works. If your biggest concern is being first to market, than stop complaining and get busy because you're running out of time and the 3000+ people who were at MIX certainly aren't waiting for you. They've already started working on their apps.

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  • Check your Embed Interop Types flag when doing Visual Studio extensibility work

    - by Daniel Cazzulino
    In case you didn’t notice, VS2010 adds a new property to assembly references in the properties window: Embed Interop Types: This property was introduced as a way to overcome the pain of deploying Primary Interop Assemblies. Read that blog post, it will help understand why you DON’T need it when doing VS extensibility (VSX) work. It's generally advisable when doing VSX development NOT to use Embed Interop Types, which is a feature intended mostly for office PIA scenarios where the PIA assemblies are HUGE and had to be shipped with your app. This is NEVER the case with VSX authoring. All interop assemblies you reference (EnvDTE, VS.Shell, etc.) are ALWAYS already there in the users' machine, and you NEVER need to distribute them. So embedding those types only increases your assembly size without a single benefit to you (the extension developer/author).... Read full article

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  • Visual Studio 2010, Entity Framework, and Oracle

    - by Tobias Gunn
    While I was working on a SilverLight 4 demo I found out that Entity Framework is not supported directly through the .NET provider or ODP tools. In order to make them work you need to either write a wrapper of your own (wouldn't chance it) or else use a provider like DataDirect or Quest's upcoming tool. So far, I've been very happy with the DataDirect tool (found here http://www.datadirect.com/products/net/index.ssp). As I get a little farther along I'll post more on SL4, RIA, and EF.

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  • My Visual Studio 2010 Dark Theme

    Everyone has their preferences for their development IDE. Colors, fonts, tools, keyboard shortcuts, etc. Im certainly no different. I really prefer the darker themes over the white background. The brightness of the white background wears on me after a while. The dark theme sets me in a mellow coding mood :) I dont generally keep a theme exactly as is for a long time. Instead I start with a theme and I tinker with it as I find things I dont like. Ive taken my latest theme and uploaded it here. Feel...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • First class language in Visual Studio 2010 using F#

    - by Aamir Hasan
     F# is a strongly-typed language like C#.It is light weight syntax just like Python.It give you math-like feel. let data = (1,2,3)   let rotations (x, y, z) =     [ (x, y, z);       (z, x, y);       (y, z, x) ]   let derivative f x =     let p1 = f (x - 0.05)     let p2 = f (x + 0.05)     (p2 - p1) / 0.1   let f x = 2.0*x*x - 6.0*x + 3.0   let df = derivative f   System.Console.WriteLine("The derivative of f at x=4 is {0}", df 4.0)   This program will print: “The derivative of f at x=4 is 10”That’s a quick look at just a few of the exciting features of F#.  For more on F#, visit the F# Development Center on MSDN.  

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  • Installing the Windows Azure Tools for Visual Studio March 2011 and SDK 1.4

    - by Enrique Lima
    Coming from the joys and new features the SDK 1.3 version gave us back in November/December, we are now again at the doors of another update, Version 1.4 To get it, go to the Windows Azure website, the click on the Develop Menu option.  Once there, Click on the Get Tools & SDK button. This will start the download to activate the Web Platform Installer, when you review the information on it, you get this. Click Install. And Accept the EULA. Installation starts at this point. And you are finished. More to come on the changes this addresses.

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  • How to sort a ListView control by a column in Visual C#

    - by bconlon
    Microsoft provide an article of the same name (previously published as Q319401) and it shows a nice class 'ListViewColumnSorter ' for sorting a standard ListView when the user clicks the column header. This is very useful for String values, however for Numeric or DateTime data it gives odd results. E.g. 100 would come before 99 in an ascending sort as the string compare sees 1 < 9. So my challenge was to allow other types to be sorted. This turned out to be fairly simple as I just needed to create an inner class in ListViewColumnSorter which extends the .Net CaseInsensitiveComparer class, and then use this as the ObjectCompare member's type. Note: Ideally we would be able to use IComparer as the member's type, but the Compare method is not virtual in CaseInsensitiveComparer , so we have to create an exact type: public class ListViewColumnSorter : IComparer {     private CaseInsensitiveComparer ObjectCompare;     private MyComparer ObjectCompare;     ... rest of Microsofts class implementation... } Here is my private inner comparer class, note the 'new int Compare' as Compare is not virtual, and also note we pass the values to the base compare as the correct type (e.g. Decimal, DateTime) so they compare correctly: private class MyComparer : CaseInsensitiveComparer {     public new int Compare(object x, object y)     {         try         {             string s1 = x.ToString();             string s2 = y.ToString();               // check for a numeric column             decimal n1, n2 = 0;             if (Decimal.TryParse(s1, out n1) && Decimal.TryParse(s2, out n2))                 return base.Compare(n1, n2);             else             {                 // check for a date column                 DateTime d1, d2;                 if (DateTime.TryParse(s1, out d1) && DateTime.TryParse(s2, out d2))                     return base.Compare(d1, d2);             }         }         catch (ArgumentException) { }           // just use base string compare         return base.Compare(x, y);     } } You could extend this for other types, even custom classes as long as they support ICompare. Microsoft also have another article How to: Sort a GridView Column When a Header Is Clicked that shows this for WPF, which looks conceptually very similar. I need to test it out to see if it handles non-string types. #

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  • BCS with Visual Studio 2010

    Ad:: SharePoint 2007 Training in .NET 3.5 technologies (more information). This feed URL has been discontinued. Please update your reader's URL to : http://feeds.feedburner.com/winsmarts Read full article .... ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Visual Basic Book Excerpt: Useful Namespaces

    This chapter provides an overview of some of the most important system namespaces and gives more detailed examples that demonstrate regular expressions, XML, cryptography, reflection, threading, parallel programming, and Direct3D....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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