Toglle Button in Heirarachical grid raising Exception

[Nishad Pillai]

Hi,

I am using silverlight 4.0 with telerik version  Q3 2009.In my application i used a telerik heirarchical grid.when wee add items to the Grid  it works fine.But when we try to save the data i am getting an exception in the App.xaml file.The error is related to the toggle button change in the heirarchical grid ,+ and minus.This is the exception message i am getting
 "Error HRESULT E_FAIL has been returned from a call to a COM component."

If anyone can find the solution with the same telerik version please help me to get solved.This is  the stack trace i am getting.If no dat is there in the grid it won't raise any exception.


   at MS.Internal.XcpImports.VisualStateManager_GoToState(Control reference, String StateName, Boolean useTransitions, Boolean& refreshInheritanceContext)
   at System.Windows.VisualStateManager.GoToState(Control control, String stateName, Boolean useTransitions)
   at System.Windows.Controls.Primitives.ToggleButton.ChangeVisualState(Boolean useTransitions)
   at System.Windows.Controls.Primitives.ButtonBase.OnIsEnabledChanged(IsEnabledChangedEventArgs e)
   at System.Windows.Controls.Control.OnIsEnabledChanged(Control control, EventArgs args)
   at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName)

[Vlad]

Hi,

 Please use our official Silverlight 4 version instead - Q1 2010 SP1.

Kind regards,
Vlad
the Telerik team