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Check if IsCallback on Application_BeginRequest

Posted on 2009-07-10
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Last Modified: 2012-08-13
I have a web application (.NET 3.5) that has this code in Global.asax:

Sub Application_BeginRequest(ByVal sender As Object, ByVal e As EventArgs)
    LinkLoader()
    PathRewriter()
    PathAppender
End Sub

I want all those functions inside to get called except for when it's an AJAX call back. So, ideally I would have it changed to:


Sub Application_BeginRequest(ByVal sender As Object, ByVal e As EventArgs)
    If not Page.IsCallback then
    LinkLoader()
    PathRewriter()
    PathAppender
    End If
End Sub

But there is not access to the page object here. So, basically my question is:

How do I check if the request is an AJAX call back inside Application_BeginRequest?

Thank you very much for any feedback.
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Question by:InfobitSystems
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Accepted Solution

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InfobitSystems earned 0 total points
ID: 24826380
Ok, found a solution. Need to check Request.Form("__ASYNCPOST"). It is set to "true" if it is a Callback, otherwise it is "nothing"
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