HI i am using Net Advantage 2008 Vol 2 version. Getting Object reference exception while Drag and Drop selected Rows from UltraGrid to UltraTree. I attached the trace information below
System.NullReferenceException: Object reference not set to an instance of an object. at Infragistics.Win.UltraWinGrid.UltraGrid.Infragistics.Win.ISelectionManager.SetInitialSelection(ISelectableItem item) at Infragistics.Win.SelectionStrategyExtended.OnMouseMove(ISelectableItem item, MouseMessageInfo& msginfo) at Infragistics.Win.SelectionStrategyExtended.OnMouseMessage(ISelectableItem item, MouseMessageInfo& msginfo) at Infragistics.Win.ControlUIElementBase.ProcessMouseMoveHelper(Object sender, MouseEventArgs e) at Infragistics.Win.ControlUIElementBase.ProcessMouseMove(Object sender, MouseEventArgs e) at Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e) at Infragistics.Win.UltraControlBase.OnMouseMove(MouseEventArgs e) at System.Windows.Forms.Control.WmMouseMove(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)
At a glance that looks like a bug in the grid since the exception is caused by our own internal method call, but it would also seem possible that your drag/drop implementation is causing it. If you attach a sample that demonstrates the problem we can take a look.
I am getting the error when i am trying to select multiple rows in the grid and CTRL + Drag the rows and moves out of the Panel.