What is the role of a ScriptManagerProxy?

Question

Amit Singh · Answer

A
 page can contain only one ScriptManager control. If you have a 
Master-Content page scenario in your application and the MasterPage 
contains a ScriptManager control, then you can use the 
ScriptManagerProxy control to add scripts to content pages. 
Also,
 if you come across a scenario where only a few pages in your 
application need to register to a script or a web service, then its best
 to remove them from the ScriptManager control and add them to 
individual pages, by using the ScriptManagerProxy control. That is 
because if you added the scripts using the ScriptManager on the Master 
Page, then these items will be downloaded on each page that derives from
 the MasterPage, even if they are not needed, which would lead to a 
waste of resources.

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What is the role of a ScriptManagerProxy?

Amit Singh

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