Cannot unregister UpdatePanel with ID

Question

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Hi.
I have Problem by UpdatePanel.
Please help me.
my error:

SQL

Cannot unregister UpdatePanel with ID '' since it was not registered with the ScriptManager. This might occur if the UpdatePanel was removed from the control tree and later added again, which is not supported.
    Parameter name: updatePanel

[ArgumentException: Cannot unregister UpdatePanel with ID '' since it was not registered with the ScriptManager. This might occur if the UpdatePanel was removed from the control tree and later added again, which is not supported.
Parameter name: updatePanel]
System.Web.UI.PageRequestManager.UnregisterUpdatePanel(UpdatePanel updatePanel) +839559
System.Web.UI.UpdatePanel.OnUnload(EventArgs e) +2948636
System.Web.UI.Control.UnloadRecursive(Boolean dispose) +160
System.Web.UI.Control.UnloadRecursive(Boolean dispose) +323
System.Web.UI.Control.UnloadRecursive(Boolean dispose) +323
System.Web.UI.Control.UnloadRecursive(Boolean dispose) +323
System.Web.UI.Control.UnloadRecursive(Boolean dispose) +323
System.Web.UI.Page.UnloadRecursive(Boolean dispose) +24
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +11297582
System.Web.UI.Page.ProcessRequest() +119
System.Web.UI.Page.ProcessRequest(HttpContext context) +167
ASP.controls_membership_request_default_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\localsamab\0ade0bce\7cf82176\App_Web_xbnt5ojs.0.cs:0
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +597
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +266

I add a Scrip Manager to Master Page.
Other parts are working properly but this part have Error.

Posted 28-May-12 19:21pm

Hadi Basiri

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3 solutions

Solution 2

~~its not working~~

Posted 22-Nov-12 22:24pm

Raj Mouli

Solution 4

I get 'System.Reflection.MethodInfo[]' does not contain a definition for 'Where' and no extension method 'Where' accepting a first argument of type 'System.Reflection.MethodInfo[]' could be found

Posted 22-Oct-14 21:36pm

Member 3787494

Comments

CHill60 23-Oct-14 4:30am

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member60 · Accepted Answer · 2012-05-28T19:53:00

you should add the UpdatePanel_Unload to the OnUnload event of the UpdatePanel:

C#

<asp:UpdatePanel ID="UpdatePanel1" runat="server" OnUnload="UpdatePanel_Unload">

In Code behind :

C#

protected void UpdatePanel_Unload(object sender, EventArgs e) {
    MethodInfo methodInfo = typeof(ScriptManager).GetMethods(BindingFlags.NonPublic | BindingFlags.Instance)
        .Where(i => i.Name.Equals("System.Web.UI.IScriptManagerInternal.RegisterUpdatePanel")).First();
    methodInfo.Invoke(ScriptManager.GetCurrent(Page),
        new object[] { sender as UpdatePanel });
}

for more details for cause of this error refer :
http://msmvps.com/blogs/luisabreu/archive/2006/11/16/adding-removing-updatepanels-dynamicaly-from-a-page.aspx[^]
hope this helps.

Cannot unregister UpdatePanel with ID

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Cannot unregister UpdatePanel with ID

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