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System.NullReferenceException

Type : System.NullReferenceException Message : 未将对象引用设置到对象的实例。 Source : Syncfusion.Grid.Grouping Help link : TargetSite : Syncfusion.Windows.Forms.Grid.Grouping.GridSummaryColumnDescriptor GetSummaryColumnAtCol(Int32) exceptionType : at Syncfusion.Windows.Forms.Grid.Grouping.GridSummaryRowDescriptor.GetSummaryColumnAtCol(Int32 col) at Syncfusion.Windows.Forms.Grid.Grouping.GridTable.CreateTableCellIdentity(Element element, Int32 rowIndex, Int32 colIndex) at Syncfusion.Windows.Forms.Grid.Grouping.GridTable.CreateTableCellStyle(Element element, Int32 rowIndex, Int32 colIndex) at Syncfusion.Windows.Forms.Grid.Grouping.GridTable.GetTableCellStyle(Int32 rowIndex, Int32 colIndex) at Syncfusion.Windows.Forms.Grid.Grouping.GridTableControl.GetTableViewStyleInfo(Int32 rowIndex, Int32 colIndex) at Syncfusion.Windows.Forms.Grid.Grouping.GridTableControl.OnCellTipsMouseMove(MouseEventArgs e) at Syncfusion.Windows.Forms.Grid.Grouping.GridTableControl.OnMouseMove(MouseEventArgs e) at System.Windows.Forms.Control.WmMouseMove(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at Syncfusion.Windows.Forms.ScrollControl.WndProc(Message& msg) at Syncfusion.Windows.Forms.Grid.GridControlBase.WndProc(Message& msg) at Syncfusion.Windows.Forms.Grid.Grouping.GridTableControl.WndProc(Message& msg) at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

1 Reply

AD Administrator Syncfusion Team July 21, 2005 11:19 AM

What version are you using? When do you get this exception? Can you upload a sample project showing the problem?

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