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Which is the purpose for using the ScriptManager?

The purposes of ScriptManager in ASP.NET AJAX are explained as following.

  •  It enables the Client-script functionality of the Microsoft AJAX Library and it also supports a custom script that we can send to the browser. 
  •  It supports Partial-page rendering, which enable us to make partial page update without a postback. 
  •  The ASP.NET AJAX UpdatePanel, Timer and UpdateProgress controls work with ScriptManager control to support partial-page rendering. 
  •  It supports JavaScript proxy classes for Web services that provide client script which enable us to access Web services by exposing them as strongly typed objects. 
  •  It provides JavaScript classes to deal with ASP.NET authentication and profile application services.