This is a migrated thread and some comments may be shown as answers.

[Solved] Radajaxmanager exception

3 Answers 294 Views

Ajax

This is a migrated thread and some comments may be shown as answers.

franchute asked on 24 Mar 2008, 07:26 PM

Hi guys,
I'm having the following problem with a page when using RadAjaxManager.

I have a page with a FormView and a RadAjaxManager defined as follow:

                    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="FormView1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="FormView1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>

I also have a button which change the FormView from ReadOnly to Edit mode.

However, In some cases I'm getting the following exception within an alert popup:

"Sys.Webforms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, Httpmodules, or server trace is enabled.
Details: Error parsing near ' <html>
<head>
'. "

Any idea what'`s going on here ?

thanks in advance,

François.

3 Answers, 1 is accepted

answered on 25 Mar 2008, 01:09 AM

I am getting essentially the same error but in a different form.

Mine is firing after the completion of an AjaxRequest that completes without error, but before the rendering of the response.

Also of note is that I am using the Microsoft ASP.NET 3.5 Extensions Preview version of the controls.

StackTrace:

Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object.   at System.Web.UI.AsyncPostBackTrigger.HasTriggered()
   at System.Web.UI.UpdatePanelTriggerCollection.HasTriggered()
   at System.Web.UI.UpdatePanel.get_RequiresUpdate()
   at System.Web.UI.PageRequestManager.ProcessUpdatePanels()
   at System.Web.UI.PageRequestManager.RenderPageCallback(HtmlTextWriter writer, Control pageControl)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
   at System.Web.UI.Page.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
   at Telerik.Web.UI.RadAjaxControl.RenderPageInAjaxMode(HtmlTextWriter writer, Control page)
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
   at System.Web.UI.Page.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)