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I ran into an interesting problem today that required me to identify the SqlType of any given column, so that I could do special processing where appropriate. It normally wouldn't be such a big deal, because you can call GetType(i) to learn whether it's a string, boolean, DateTime, etc. However, there are some types that need to be differentiated further: for example, money and numbers in SQL might both map to the same .NET type.

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Lambda expressions are a new construct in C# 3.0 that provide a more concise way of writing anonymous methods (which were introduced in C# 2.0). Lambda expressions are especially useful in LINQ statements but can be used any place anonymous methods are.

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