LINQ IQueryable toolkit available on CodePlex
Matt Warren has put the IQueryable toolkit on CodePlex. I’m excited about this for a number of reasons.
I’ve commented before about how much I’ve learned reading Matt’s posts about building an IQueryProvider. That makes LINQ much more powerful. However, building an IQueryProvider from scratch is a difficult and lengthy task. Without any jump-start, creating an IQueryProvider is almost always more work than it’s worth. (The counter-examples are those providers for very broad use sources like SQL, XML, or Amazon).
Adding Matt’s sample code gives you the jumpstart you need to create a reasonable Query Provider. My hope is that enough people find the IQueryable toolkit useful, and it finds its way into the .NET BCL in some future version.
In the meantime, it’s a great way to get started creating your IQueryProvider.