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Anonymous method with and without parameter

One of the features added as part of language enhancements in dotnet 2.0 is anonymous method.

What is anonymous method?

A delegate with no named method associated with it is an anonymous method.

When do we use it?

When we do not want to have a separate method for a delegate

When we need to access the local variables

Example:

With Parameter:

int i = 0;

button1.Click += delegate(object s, RoutedEventArgs e)

{

i++;

string buttonText = (s as Button).Content.ToString();

MessageBox.Show(buttonText + " Clicked " + i.ToString() + " time(s)");

};

Without Parameter:

int i = 0;

button1.Click += delegate

{

i++;

MessageBox.Show("I am clicked "+i.ToString() +" time(s)");

};

Written By: Kumaravel
Date Posted: 2/10/2009
Number of Views: 949

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