AJAX :: Getting Error With Method On Tab Container ID
Jul 13, 2010
What am I missing here; this should be straight forward, but when I attempt to access the "get_activeTabIndex()" method on my Tab Container's ID, I get the following error:
"Object doesn't support this property or method"
This is using VS.NET 2010 with the AJAX Control Toolkit built for Framework 4, but I don't think anything was deprecated so this should not be an issue. I extract the ID of the control using serverside script variables, then attempt to access the method, but it fails. Take a look:
[Code]....
Value 'tabCtrl' does indeed have value, as I can see it registers as an object (not NULL or Nothing) and ClientID resolves to the following:
ctl00$ContentPlaceHolderMyApp$AJAXTabContainerNumData
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[Code] ....
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AND
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[Code] ....
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[Code]....
Server Error in '/' Application.
Specified argument was out of the range of valid values.Parameter
name: index Exception Details:
System.ArgumentOutOfRangeException: Specified argument was out of the range
of valid values.Parameter name: indexSource Error:
[Code]....
Stack Trace:
[Code]....
[ArgumentOutOfRangeException: Specified argument was out of the range of valid values.Parameter name: index] System.Web.UI.ControlCollection.get_Item(Int32 index) +8665582 AjaxControlToolkit.TabPanelCollection.get_Item(Int32 index) +81 AjaxControlToolkit.TabContainer.LoadClientState(String clientState) +339 AjaxControlToolkit.ScriptControlBase.LoadPostData(String postDataKey, NameValueCollection postCollection) +181 AjaxControlToolkit.TabContainer.LoadPostData(String postDataKey, NameValueCollection postCollection) +110 AjaxControlToolkit.ScriptControlBase.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) +74 System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +693 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1743
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
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ASPX page:
[Code]....
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[Code]....
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