One example of WPF databinding.
When announce any major project I always provide an "as a training tool" section to explain how the project can be used for personal training. NetFXHarmonics DevServer is built using .NET 3.5 and relies heavily on LINQ and WCF with a WPF interface. In terms of LINQ, you can find many examples of how to use both query expression syntax and extension method syntax. When people first learn LINQ, they think that LINQ is an O/R mapper. Well, it's not (and probably shouldn't be usef for that in enterprise applications! there is only one enterprise class O/R mapper: LLBLGen Pro). LINQ allows Language INtegrated Query in both C# and VB. So, in DevServer, you will see heavy reliable on LINQ to search List<> objects and transform LINQ database entities to WCF DTOs.
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