private void mapControl_GM_OnKeyUp(object sender, IMapControlEvents2_OnKeyUpEvent e)
{
if (e.keyCode == (int)Keys.Delete && mapControl_GM.CurrentTool != null &&
!mapControl_GM.CurrentTool.GetType()
.FullName.Equals("ESRI.ArcGIS.Controls.ControlsEditingEditToolClass"))
{
DataEditCommon.DeleteAllSelection();
}
}