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Graham
595
Dropdown viewstate is lost when hiding panel containing grid with dropdown?
posted

Hi,

Does anyone know how to fix this issue?

 

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.

Exception Details: System.InvalidOperationException: Infragistics.Web.UI.ListControls.DropDownItemCollection ViewState is corrupted.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 

[InvalidOperationException: Infragistics.Web.UI.ListControls.DropDownItemCollection ViewState is corrupted.]
   Infragistics.Web.UI.Framework.ObjectCollection.LoadViewStateItems(ArrayList itemList) +426
   Infragistics.Web.UI.Framework.ObjectCollection.LoadViewState(Object savedState) +220
   Infragistics.Web.UI.Framework.ObjectCollection.System.Web.UI.IStateManager.LoadViewState(Object savedState) +39
   Infragistics.Web.UI.ListControls.ListControl.LoadViewState(Object savedState) +138
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +183
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +249
   System.Web.UI.ControlCollection.Add(Control child) +80
   Infragistics.Web.UI.GridControls.WebDataGrid.ConnectEditorProviders() +200
   Infragistics.Web.UI.GridControls.WebDataGrid.CreateChildControls() +28
   System.Web.UI.Control.EnsureChildControls() +87
   Infragistics.Web.UI.GridControls.WebDataGrid.EnsureChildControls() +117
   System.Web.UI.Control.FindControl(String id, Int32 pathOffset) +23
   System.Web.UI.Control.FindControl(String id, Int32 pathOffset) +327
   System.Web.UI.Page.FindControl(String id) +38
   System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +626
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1743

Version Information: Microsoft .NET Framework Version:2.0.50727.5444; ASP.NET Version:2.0.50727.5420

Server Error in '/' Application.

Infragistics.Web.UI.ListControls.DropDownItemCollection ViewState is corrupted.