A mechanism introduced in the Microsoft ASP.NET to
allow the communication between client side and
server side.
How postback works in ASP.NET In this article, xefteri.com will take a closer look at how ASP.NET pages post back to themselves, and how to customize this feature in web applications.
Processing Postback Data For a control to be able to examine form data that is posted back by the client, it must implement the System.Web.UI.IPostBackDataHandler interface. The contract of this interface allows a control to determine whether its state should be altered as a result of the postback and to raise appropriate events. The IPostBackDataHandler interface contains two methods.
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