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515
Red Cross of death
posted

Hi,

I am using version 11.1 of wingrid and I have it hooked up with a UltraDataSource which loads data from a web service in chunks on a background thread.

I am getting the red cross of death on some of production machines,are there are know bugs in this area sine 11.1 that have been fixed or what is the best strategy to debug these problems.

Thanks

 

2013-02-26 10:03:26,834 [VSTA_Main] ERROR - System.NullReferenceException: Object reference not set to an instance of an object.    at Infragistics.Win.UIElement.DrawChildElements(UIElementDrawParams& drawParams)    at Infragistics.Win.UIElement.DrawElement(UIElementDrawParams& defaultDrawParams)    at Infragistics.Win.UIElement.DrawChildElements(UIElementDrawParams& drawParams)    at Infragistics.Win.UIElement.DrawElement(UIElementDrawParams& defaultDrawParams)    at Infragistics.Win.UIElement.DrawChildElements(UIElementDrawParams& drawParams)    at Infragistics.Win.UIElement.DrawElement(UIElementDrawParams& defaultDrawParams)    at Infragistics.Win.UIElement.DrawChildElements(UIElementDrawParams& drawParams)    at Infragistics.Win.UIElement.DrawElement(UIElementDrawParams& defaultDrawParams)    at Infragistics.Win.UIElement.DrawChildElements(UIElementDrawParams& drawParams)    at Infragistics.Win.UIElement.DrawElement(UIElementDrawParams& defaultDrawParams)    at Infragistics.Win.UIElement.DrawChildElements(UIElementDrawParams& drawParams)    at Infragistics.Win.UIElement.DrawElement(UIElementDrawParams& defaultDrawParams)    at Infragistics.Win.UIElement.DrawHelper(Graphics graphics, Rectangle invalidRectangle, Boolean doubleBuffer, AlphaBlendMode alphaBlendMode, Boolean clipText, Boolean forceDrawAsFocused, Boolean preventAlphaBlendGraphics)    at Infragistics.Win.ControlUIElementBase.Draw(Graphics graphics, Rectangle invalidRectangle, Boolean doubleBuffer, AlphaBlendMode alphaBlendMode, Size elementSize, Boolean preventAlphaBlendGraphics)    at Infragistics.Win.ControlUIElementBase.Draw(Graphics graphics, Rectangle invalidRectangle, Boolean doubleBuffer, AlphaBlendMode alphaBlendMode)    at Infragistics.Win.UltraWinGrid.UltraGridUIElement.Draw(Graphics graphics, Rectangle invalidRectangle, Boolean doubleBuffer, AlphaBlendMode alphaBlendMode)    at Infragistics.Win.UltraControlBase.OnPaint(PaintEventArgs pe)    at Infragistics.Win.UltraWinGrid.UltraGrid.OnPaint(PaintEventArgs pe)    at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)    at System.Windows.Forms.Control.WmPaint(Message& m)    at System.Windows.Forms.Control.WndProc(Message& m)    at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)    at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)    at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)