Linq has been shipped with VS2008/.Net 3.5 and is not really new. If more and more people are getting used to its syntax, it’s sometimes hard to imagine all the scenarii where Linq to object can replace the classical way we program. During some Silverlight coding, I changed my code to make it run...

I needed some quiet time to finish this article so I took some vacations here (Mauritius Island) Expressions are used to evaluate something. We usually use them in the right side of an affectation or at any place where a value is expected. It can be composed with many other values, with computations...

Just a quick post to share this project with you. Microsoft France organized a 2 month long internship in Paris to develop a Surface Toolkit. We have provided a bunch of controls, including a Card Game Surface Starter kit that you can see here: The project on Codeplex: http://surfaceacademy2009.codeplex...

For the last Paris mobility briefing, my colleague Pierre Cauchois asked me to co-animate the Coding4Fun session…hard to refuse. Even if mobile dev is not my every day work, thanks to the .Net Compact Framework, it’s still .Net programming. Here is the scenario: You come back home, you have...

Before going into Linq, here is again one of my pictures: Le Louvre by night, Paris When using Linq to objects, you will quickly feel the need to pass some parameters from a method to another but it’s not so easy because each Linq method is not calling the following one. In a Linq sequence,...

Contrarily to the title, this is a serious article ! From 10th to 12th of February Microsoft France have organized the Paris Techdays event. During the developer keynote, I have presented some Surface development features with a funny demo. Here is a video of this demo but in french. Now...

You can now find the Silverlight 2 RTM version of this pageturn control, still here on codeplex : http://www.codeplex.com/wpfbookcontrol I have also updated the online example showing flickr pictures in a book: http://blogs.msdn.com/mitsu/archive/2008/05/14/create-a-virtual-book-with-your-flickr-pictures...

Before we go deep into Linq to Sql, I wanted to share with you one of my pictures made last week at Chamonix Mont Blanc from "L'aiguille du midi" during some days off. Ok now let's go. Here is just a little trick but with some interesting patterns that could be useful in some other contexts...

This piece of code is part of a personal bigger project that I am working on and I think there are interesting thing in it and I wanted to share it with you. I am trying to use generics and type inference to imagine new kind of method prototype. With all the stuff around Linq like lambda expressions...

I recently had to write a small Flickr API. I know many .Net API for Flickr already exist but I needed one for a Silverlight application. Whatever, it's only about building some querystrings so I did it by myself. It's been an opportunity to think again about a classical question: how to pass parameters...

I have just finished converting the control to silverlight one week away from Silverlight 2 beta 2 release date, so I have been waiting for it ! For people to be able to compare code (quite similar) and behavior between the WPF and the Silverlight control, I have kept the same codeplex project...

Get some help with the video on this page: http://blogs.msdn.com/mitsu/archive/2008/05/14/show-your-flickr-pictures-in-a-silverlight-book.aspx

Here is a control that everybody can easily use. This allow you to display Flickr pictures in a blog post or in any web page. For example this set of pictures ( http://www.flickr.com/photos/benjamingauthey/sets/72157604570177365/ ), taken by my friend Benjamin during Paris Remix 08 can be browsed...

I was getting really bored with testing .ContainsKey() at each time I wanted to read a value from a dictionary. Dictionary < string , string > dico; if (dico.ContainsKey( " key " )) value = dico[ " key " ]; else value = " default " ; A incredibly simple extension method solves this so...

Enjoy, Code is coming very soon.. [Update]: code is now available here ! Mitsu Move the mouse cursor around the corners

Hi all, After almost one year of work and organization, I am very happy to share this project with you: http://code.msdn.microsoft.com/vlinq - new setup fixed (4/17/2008) The Visual Linq query builder is a Visual Studio 2008 addin. It's a designer that helps you create Linq to Sql queries in...

Just a short informative post: David Catuhe, a french MVP from south of France is demoing a Silverlight 3D engine preview... http://www.catuhe.com/NovaLight/NovaLight.aspx His company 'Vertice' is selling the Nova product (a full .Net 3D engine based on Managed DX). You can find some awesome demos here...

In my previous post ( http://blogs.msdn.com/mitsu/archive/2007/06/21/how-to-implement-a-many-to-many-relationship-using-linq-to-sql.aspx ), I had proposed a simple solution for implementing many-to-many relationships using Linq to Sql. Actually, this solution is a generic Linq solution. It's also working...

Shawn asked me in my last post about GroupByMany how to use it dynamically. The answer is not easy. So here is a new post to answer to this interesting question. First you must learn a few things about being dynamic with linq. There is a very good sample from the C# team (actually we can consider...

Video: WPF Object dumper demo The official C# 3.0 samples are providing a very useful ObjectDumper class that allows displaying any kind of object on the console output. All the child properties are also displayed and you can even define how deep you want to go through child properties. In this...

Linq is a great technology to manage data directly from your .Net language. One of its features is grouping. Many people understand grouping like it is defined in Sql. Linq is implementing grouping quite the same way. Let's discover this syntax and how to make consecutive groups easier. Then we...

Linq is SO FUN !!! I have read this article from a french developer about Linq used to find the list of all the prime numbers < n : http://blogs.developpeur.org/raptorxp/archive/2007/11/26/quizz-linq-la-liste-des-nombres-premiers-en-3-clauses.aspx Here is another sample: let's try to find the prime...

In this article, I will show one possible solution to implement many-to-many relationship using Linq to Sql. Let's begin with some definitions and what Linq to Sql offers. A “many to many” relationship between two entities defines a kind of bi-directional “one to many” relationship for each of...

Here is the translation of one of my old french articles at a moment when I was trying to find what I could do with anonymous methods :p ! Here is the idea: Let's imagine we would like to centralize exception management. In numerous program (like windows API), a classical solution consist in implementing...

Introduction In our windows applications we are commonly using modal windows. Let's remind the idea. Using windows forms, once a window is created, we can choose to show it in a modal manner (form.ShowDialog()). The window then becomes THE front window between all the other windows of our application...