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Expression Trees In C#

Brief

Expression and Expression<> are basically classes that can represent the CSharp code as Data. Really? Yeah really. Unlike Func<> or Action<> Expressions are non-compiled Data about the code. Most of LINQ Providers has been built using Expressions. Let’s get started with a sample Expression and try to understand it.

The Expression Tree can be visualized as with it’s major properties:

Expression statement

Expression

Refer this link for more details.
StackOverflow Link
Expression Vs Delegates
MSDN
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