what is anonymous methods in .net and why used anonymous method

Creating anonymous methods is essentially a way to pass a code block as a delegate parameter. For example:

Copy// Create a handler for a click event

button1.Click += delegate(System.Object o, System.EventArgs e)
{ System.Windows.Forms.MessageBox.Show("Click!"); };
or


Copy// Create a delegate instance
delegate void Del(int x);
// Instantiate the delegate using an anonymous method
Del d = delegate(int k) { /* ... */ };

By using anonymous methods, you reduce the coding overhead in instantiating delegates by eliminating the need to create a separate method.