In the ASP.NET 3.5 Extensions for ASP.NET AJAX improvements in the most important point is that a better browser history support, we can easily control the browser's forward and backward buttons. It provides two ways for us to select and use server-side control or use the client-side script. You will use a simple example demonstrates how to use the server controls the browser history segment control.
Code:
<asp: ScriptManager runat= "server123" ID= "ScriptManager123"
OnNavigate= "OnNavigateHistory123"
EnableHistory= "true"
EnableStateHash= "false" />
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