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Old May 24th, 2013, 05:01 PM
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Default Run Script After Postback

I have run into the following problem: I want to run some javascript code at the client after returning from a postback. This is the test code I am executing:
Code:
	If Page.IsPostBack Then
            Dim mssg As String
            mssg = "<script language='javascript'>"
            mssg += "$(function () {"
            mssg += "alert('Postback');"
            mssg += "});"
            mssg += "</script>"
            Page.ClientScript.RegisterClientScriptBlock(GetType(Page), "recalculate", "mssg")
        End If
I have used very similar code (without the $(function()... delay) in relation to a button 'click' event on another page where it works fine. In this case (postback) what happens is the word "mssg" is displayed on the screen. When I examine the source for the screen in the area where "mssg" is located I find this message:

if (typeof(Sys) === 'undefined') throw new Error('ASP.NET Ajax client-side framework failed to load.');

When I start exploring this error message in microsoft Help, I find all sorts of suggestions such as downloading a new version of AJAX, altering some IIS settings, and changing settings on panels I have no knowledge of.
Does anyone have a simple solution to suggest?





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