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What is a ScriptManager?
Every Ajax enabled page in ASP.NET that makes use of the Ajax Library needs to have a boss or a manager that takes care of the internal Ajaxification process. All this is controlled by the ScriptManager control. Every page should have not more than one ScriptManager control. It takes care of the Javascript functionalities and the partial postbacks made by the web page by taking care of the XmlHttpRequest object from behind the scenes.
The ScriptManager is a class as well as a control. This was introduced in ASP.NET 3.5, before which it had to be used in ASP.NET 2.0 through the Ajax Library for .NET.
If the EnablePartialPostback property of the ScriptManager is set to false, the web page exhibits a full page postback.
In the aspx code, the ScriptManager control acts as the bucket for the UpdatePanel control.
.NET Multiple Versions
Datapager Control
Running .NET in Visual Studio 2008
ASP.NET Merge Tool
ScriptManager
UpdatePanel Control
UpdateProgress Control
LINQ
ASP.NET 3.5 Features
Listview Control
ScriptManagerProxy
New Assemblies in ASP.NET 3.5
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