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Easy Data-loading with LINQ-to-SQL and LINQ-to-XML von .Net Smoothie

.Net 3.5 had some nice tricks in it. LINQ-to-XML was one of them. With the new "X"-types, you can make working with XML really easy. VB.Net 9 takes it one step further, and lets you write XML in your code without strings. "Hey Rich, that’s...

Design Guidelines for LINQ von .Net Smoothie

Have you wondered if and when you should use the new LINQ features in .Net 3.5? Like, where should I put a new extension method? Should I use Func<T> or a custom delegate? How do I best implement a mix-in (extension methods on an interface)? Well...

The LinqDataSource and the Hidden Viewstate von .Net Smoothie

Yesterday I thought I’d learn about the LinqDataSource in ASP.Net 3.5, and got an interesting surprise. The new LinqDataSource can also be used with a LINQ-to-SQL model to perform updates. You simply add the DataSource to your page, set the table...

How to Update Data with LINQ-to-SQL von .Net Smoothie

When learning LINQ-to-SQL, it’s not immediately obvious how to do an update. Querying is easy, and there are methods for inserting and deleting. Updating usually occurs by modifying an object already known to the DataContext and then calling SubmitChanges...
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Writing Custom Exception Classes the Quick Way von .Net Smoothie

Until recently I thought this was a well-known feature. After demonstrating it a few times, I found out it wasn’t. A long time ago, in an cubicle far, far away, someone created the .Net Framework. To cut a long story short, they simultaneously produced...

How to Use Grouping in C# LINQ Syntax von .Net Smoothie

When you started using LINQ, did you think it looked like SQL? I did. The more I learned LINQ, the more I realized it wasn’t anything like SQL. Take grouping, for example. Because LINQ has a group by statement, and it looks like SQL, I assumed that...
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LINQ to DataSets - the Missing Manual von .Net Smoothie

Last week I had to prepare a small presentation for a new LINQ workshop. For my research, I browsed through the MSDN documentation on LINQ where I came across a reference to “LINQ to DataSets”. I couldn’t find any more information about...
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My own ASP.Net MVP Framework von .Net Smoothie

So, I did it! I finally did it! I wanted to publish my ideas for a framework, and I did. You can find it on CodePlex at http://www.codeplex.com/aspnetmvp. Go have a look. I really want to know what you think. Now, I know there are a million and one frameworks...

ASP.Net MVC Corollary - What to do? von .Net Smoothie

Dude! I got quoted! And by none other than Rob Conery of SubSonic fame. It seems like my last post caused quite an unexpected stir. Thanks to both Rob and Scott for taking the time to answer me. I really appreciate it. A Word of Appreciation Let’s...

Calculating the Fibonacci Sequence with C# 3.0 von .Net Smoothie

Scott Hanselman just posted his latest article in his weekly source code series. He shows various ways of producing the Fibonacci Sequence using various languages. I found it really interesting, for two reasons: I tried to do the C#3.0 one on my own after...

Using LinqPad to Create a Time-Selector Drop-Down List von .Net Smoothie

I am really getting into LINQ now! I think it’s fantastic. I recently wanted to develop a quick drop-down list in ASP.Net which allows a user to select a time of day from a list. The times are 15 minutes apart, so the list would look like this:...
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.Net Source Code Now Available von .Net Smoothie

Scott Guthrie has just announced that the source code for the .Net framework has just been made available for reference use. It will be particularly useful to see how the controls in ASP.Net and Windows Forms have been done. Detailed instructions for...
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Using Lambda Expressions with LINQ to SQL von .Net Smoothie

When using LINQ, you need to be careful to use the right kind of Lambda expression. “What, there is more than one kind?”, I hear you gasp. There sure is! And if you aren’t careful, you’ll get a nice little message at runtime to...
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Inserting into a Table with LINQ to SQL von .Net Smoothie

While creating a little project, I wanted to know how to insert an object into a table using LINQ to SQL. Using Intellisense it wasn’t obvious at all. Scott Guthrie wrote a post on how do it. Unfortunately, the method name has changed since he did...
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Efficient Software Development with Visual Studio Team System 2008 von .Net Smoothie

I was recently asked to do some research and give a presentation about using Visual Studio Team System 2008. I thought I’d experiment with Slideshare.net and post it here. The presentation was for a large corporation, and will possibly not come...
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