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runtime exception when moving column in xamdatagrid
posted

Below error is thrown when moving columns. This happens intermittently. Any idea where this is coming from?

xamDataGrid ver: 12.1.20121.1010

Message: Collection was modified; enumeration operation may not execute.

Source: mscorlib

StackTrace:

   at System.Collections.Generic.List`1.Enumerator.MoveNextRare()    at Infragistics.Controls.Layouts.Primitives.GridBagLayoutManager.ResizeManager.CloneLayoutManagerHelper(GridBagLayoutManager source)    at Infragistics.Controls.Layouts.Primitives.GridBagLayoutManager.ResizeManager..ctor(GridBagLayoutManager layoutManager, ILayoutContainer layoutContainer, Object containerContext, Boolean autoFitWidth, Boolean autoFitHeight)    at Infragistics.Controls.Layouts.Primitives.GridBagLayoutManager.GetResizeRange(ILayoutContainer layoutContainer, Object containerContext, ILayoutItem resizeItem, Double& maxDeltaLeft, Double& maxDeltaRight, Double& maxDeltaTop, Double& maxDeltaBottom, Boolean autoFitWidth, Boolean autoFitHeight, IList`1 synchronizedItems)    at Infragistics.Windows.DataPresenter.DataPresenterBase.Infragistics.Windows.Resizing.IResizeHost.InitializeResizeConstraints(FrameworkElement resizeArea, FrameworkElement resizableItem, ResizeConstraints constraints)    at Infragistics.Windows.DataPresenter.DataPresenterBase.Infragistics.Windows.Resizing.IResizeHost.CanResize(FrameworkElement resizableItem, Boolean resizeInXAxis)    at Infragistics.Windows.Resizing.ResizeController.GetElementToResize(FrameworkElement element, MouseDevice mouseDevice, Nullable`1& processWidth)    at Infragistics.Windows.Resizing.ResizeController.OnQueryCursor(Object sender, QueryCursorEventArgs e)    at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)    at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)    at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)    at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)    at System.Windows.Input.InputManager.ProcessStagingArea()    at System.Windows.Input.MouseDevice.UpdateCursorPrivate()    at System.Windows.Input.MouseDevice.PostProcessInput(Object sender, ProcessInputEventArgs e)    at System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)    at System.Windows.Input.InputManager.ProcessStagingArea()    at System.Windows.Input.MouseDevice.Synchronize()    at System.Windows.Input.MouseDevice.ChangeMouseCapture(IInputElement mouseCapture, IMouseInputProvider providerCapture, CaptureMode captureMode, Int32 timestamp)    at System.Windows.Input.MouseDevice.PreNotifyInput(Object sender, NotifyInputEventArgs e)    at System.Windows.Input.InputManager.ProcessStagingArea()    at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)    at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)    at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)    at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)    at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)    at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)    at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)    at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)