RegisterStartupScript does not work after upgrading to 3.5

Question

I am trying to upgrade asp.net C # web project from framework 2.0 to 3.5.

When I do this, the client side of the script that is written using RegisterStartupScript does not appear on the client page.

This works fine when I compile for 2.0 and 3.0, but not when I compile for 3.5.

Here is the code that fails:

Page myPage = (Page)HttpContext.Current.Handler;
ScriptManager.RegisterStartupScript(myPage, myPage.GetType(), "alertscript", "alert('test');", true);

This is called from a class project, not the web project itself, so I use HttpContext.Current.Handler.

There are no errors from the compiler, the CLR, and there are no JavaScript errors on the client side.

If I do an alertcript search on my displayed page, the above code does not actually exist.

Anyone have any ideas on what is going on?

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Answer 1

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- Framework 3.5, dll System.Web.Extensions ​​ 3.5.

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Answer 2

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ScriptManager.RegisterStartupScript(myPage, myPage.GetType(), "alertscript", "alert('test');", true); 

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2- UpdatePanel?
http://msdn.microsoft.com/en-us/library/bb359558.aspx

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