After the last release, one of our infragistics ultragrids in our vb.net program running the latest release of 2015.1 Winforms began having issues loading.
Thank you for your help in advance,
Derek
Below is the exception we receive on load:
Exception: Object reference not set to an instance of an object.
Source: Infragistics4.Win.UltraWinGrid.v15.1
Site: AlignHeaderInFixedHeaderArea
Stack Trace:
at Infragistics.Win.UltraWinGrid.UltraGridGroup.AlignHeaderInFixedHeaderArea(Rectangle& headerRect, Rectangle& fixedHeaders, BandHeaderMetricsCache bandHeaderMetricsCache)
at Infragistics.Win.UltraWinGrid.UltraGridGroup.CalculateHeaderRect(Rectangle& headerRect, Rectangle& fixedHeaderRect, BandHeaderMetricsCache bandHeaderMetricsCache)
at Infragistics.Win.UltraWinGrid.UltraGridColumn.CalculateHeaderRect(Rectangle& rcHeader, Rectangle& prcFixedHeaders, BandHeaderMetricsCache bandHeaderMetricsCache)
at Infragistics.Win.UltraWinGrid.FixedSummaryLineUIElement.GetSummaryLocation(UltraGridColumn column, Int32& x, Int32& width)
at Infragistics.Win.UltraWinGrid.FixedSummaryLineUIElement.PositionChildElements()
at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
at Infragistics.Win.UltraWinGrid.RowColRegionIntersectionUIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
at Infragistics.Win.UltraWinGrid.DataAreaUIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
at Infragistics.Win.UltraWinGrid.UltraGridUIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
at Infragistics.Win.UIElement.VerifyChildElements(Boolean recursive)
at Infragistics.Win.UltraWinGrid.UltraGridLayout.GetUIElement(Boolean verify, Boolean forceInitializeRect)
at Infragistics.Win.UltraWinGrid.UltraGridLayout.GetUIElement(Boolean verify)
at Infragistics.Win.UltraWinGrid.UltraGridCell.EnterEditorIntoEditMode(Boolean byMouse)
at Infragistics.Win.UltraWinGrid.UltraGridCell.EnterEditMode(Boolean byMouse, Boolean showingDropDown)
at Infragistics.Win.UltraWinGrid.UltraGridCell.EnterEditMode(Boolean byMouse)
at Infragistics.Win.UltraWinGrid.UltraGridLayout.PerformAction(UltraGridAction actionCode, Boolean shiftKeyDown, Boolean ctlKeyDown)
at Infragistics.Win.UltraWinGrid.UltraGrid.PerformAction(UltraGridAction actionCode, Boolean shift, Boolean control)
at Infragistics.Win.UltraWinGrid.UltraGrid.PerformAction(UltraGridAction actionCode)
at [PROGRAM].[PROJECT].[FILE_NAME}.tabMain_SelectedIndexChanged(Object sender, EventArgs e)
at System.Windows.Forms.TabControl.OnSelectedIndexChanged(EventArgs e)
at System.Windows.Forms.TabControl.WmSelChange()
at System.Windows.Forms.TabControl.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.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.SendMessage(HandleRef hWnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at System.Windows.Forms.Control.SendMessage(Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.Control.ReflectMessageInternal(IntPtr hWnd, Message& m)
at System.Windows.Forms.Control.WmNotify(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at System.Windows.Forms.NativeWindow.DefWndProc(Message& m)
at System.Windows.Forms.Control.DefWndProc(Message& m)
at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at [PROGRAM].modMain.Main()