The language designers have added powerful new features to C# that enable you to write SQL-like queries on any arbitrary sequence. Simply put, if you can foreach it, you can query it.

If you start 'thinking in LINQ' you'll get more done with less code, and what you write will be simpler than using SQL.

You don't ever have to write a complicated LINQ/Entity Framework query, but you do need to know when to call the ToList method on your query. Here's a tip on both.

You have a method that contains a LINQ query. If you use the right interface, other developers can piggyback on your method with their LINQ queries without losing efficiency.

So I'm playing around with Visual Studio 2010 while we think about moving our projects to it, and I was trying to make a new Silverlight 4 app, but when I ...