what is partial Class in Asp.net ?

[kandarp]

What is partial Class in asp.net ? and How to use it ? .
Please Reply me

[Plater]

A Partial class allows you to split up a complete class definition in multiple places.
For instance you could have one file contain the GUI related parts of a class while another file contains all the I/O related parts of a class.

VS2005 uses partial classes by default to better organize your code for you.