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Asked: 2026-05-25T09:57:52+00:00

I’m trying to update global javascript variables from ASP.NET code. What I’ve tried to

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I’m trying to update global javascript variables from ASP.NET code. What I’ve tried to do is use an UpdatePanel like that:

<asp:UpdatePanel ID="UpdatePanel" runat="server">
    <ContentTemplate>
    <script type="text/javascript">
        var global1= <%= this.Method(parameter) %>;
        var global2= <%= this.Method(parameter) %>;
    </script>
</ContentTemplate>
</asp:UpdatePanel>

The UpdatePanel has a trigger (wich is not shown on the code) that fires the update. I have also an endRequest method:

var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_initializeRequest(InitializeRequest);
prm.add_endRequest(EndRequest);

function EndRequest(sender, args) {
    compute();
}

If I use software like ‘Firebug’ to inspect the code I can perfecly see how global variables are updated to his new value (when asyncpostback occurs). Unfortunately if I put an alert showing his values inside compute function they have the previous value.

Where’s the mistake? Is it possible to update the variables this way from ASP.NET?

Thanks a lot 😉

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1 Answer

  1. Editorial Team

    I really want to thank you for participate in this thread.

    I’ve finally decided to change my initial idea and perform the actions solely with Javascript/Jquery with PageMethods (ASP.NET):

    http://msdn.microsoft.com/es-es/library/byxd99hx(v=vs.80).aspx
    http://stackoverflow.com/questions/563133/using-jquery-to-call-a-webmethod

    I don’t like they so much, because I see them as a ‘local’ solution with few possibilities of beign reused. But they return automatically JSON response wich I can use with $.ajax jquery function.

    The feeling with the interface is better now.

    Thanks again,

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