this is one of the exceptions:
System.InvalidOperationException: Do not move current position with this method!
at Syncfusion.Windows.Forms.Grid.GridModelDataBinder.SyncCurrentRecordState(Int32 pos)
at Syncfusion.Windows.Forms.Grid.GridDataBoundGrid.OnCurrentCellActivated(EventArgs e)
at Syncfusion.Windows.Forms.Grid.GridControlBase.RaiseCurrentCellActivated()
at Syncfusion.Windows.Forms.Grid.GridCurrentCell.Activate(Int32 rowIndex, Int32 colIndex, GridSetCurrentCellOptions options)
at Syncfusion.Windows.Forms.Grid.GridCurrentCell.MoveTo(Int32 rowIndex, Int32 colIndex, GridSetCurrentCellOptions options, Boolean discardChanges)
at Syncfusion.Windows.Forms.Grid.GridCurrentCell.MoveTo(Int32 rowIndex, Int32 colIndex, GridSetCurrentCellOptions options)
at Syncfusion.Windows.Forms.Grid.GridSelectCellsMouseController.MouseDown(MouseEventArgs e)
at Syncfusion.Windows.Forms.MouseControllerDispatcher.ProcessMouseDown(MouseEventArgs e)
at Syncfusion.Windows.Forms.ScrollControllMouseControllerDispatcher.ScrollControlBeforeMouseDown(Object sender, CancelMouseEventArgs e)
at Syncfusion.Windows.Forms.ScrollControl.OnScrollControlMouseDown(CancelMouseEventArgs e)
at Syncfusion.Windows.Forms.Grid.GridControlBase.OnScrollControlMouseDown(CancelMouseEventArgs e)
at Syncfusion.Windows.Forms.ScrollControl.RaiseCancelMouseEvent(MouseEventArgs e, CancelMouseDelegate d)
catched at Syncfusion.Windows.Forms.ScrollControl.RaiseCancelMouseEvent(MouseEventArgs e, CancelMouseDelegate d) in :line 0
this is the other one:
System.InvalidOperationException: Do not move current position with this method!
at Syncfusion.Windows.Forms.Grid.GridModelDataBinder.SyncCurrentRecordState(Int32 pos)
at Syncfusion.Windows.Forms.Grid.GridDataBoundGrid.OnCurrentCellActivated(EventArgs e)
at Syncfusion.Windows.Forms.Grid.GridControlBase.RaiseCurrentCellActivated()
at Syncfusion.Windows.Forms.Grid.GridCurrentCell.Activate(Int32 rowIndex, Int32 colIndex, GridSetCurrentCellOptions options)
at Syncfusion.Windows.Forms.Grid.GridCurrentCell.MoveTo(Int32 rowIndex, Int32 colIndex, GridSetCurrentCellOptions options, Boolean discardChanges)
at Syncfusion.Windows.Forms.Grid.GridCurrentCell.InternalMove(GridDirectionType direction, Int32 num, GridSetCurrentCellOptions options)
at Syncfusion.Windows.Forms.Grid.GridSelectCellsMouseController.GridCurrentCellExternalMove(GridDirectionType direction, Int32 num, Boolean extendSelection)
at Syncfusion.Windows.Forms.Grid.GridCurrentCell.Move(GridDirectionType direction, Int32 num, Boolean extendSelection, Boolean wrapCell)
at Syncfusion.Windows.Forms.Grid.GridControlBase.OnKeyDown(KeyEventArgs e)
at Syncfusion.Windows.Forms.Grid.GridDataBoundGrid.OnKeyDown(KeyEventArgs e)
at System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
at Syncfusion.Windows.Forms.Grid.GridControlBase.ProcessKeyEventArgs(Message& m)
at System.Windows.Forms.Control.ProcessKeyMessage(Message& m)
at Syncfusion.Windows.Forms.Grid.GridControlBase.ProcessKeyMessage(Message& m)
at System.Windows.Forms.Control.WmKeyChar(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 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)