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C# 4.0 Unleashed by Bart De Smet

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Closures: Captured Outer Variables

image Because of their capability to capture local variables from the outer scope, anonymous function expressions are much more powerful than would seem to be the case at first glance. Let’s take a look at an example:

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In the preceding code fragment, the local variable factor is captured inside the embedded inline method declaration. This is a powerful capability that reduces plumbing significantly. Imagine how you would communicate the factor value to a delegate if you couldn’t simply use an anonymous function expression. ...

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