void lg_ColumnRightClick(object sender, ColumnClickEventArgs e)
{
ListGroup lg = (ListGroup)sender;
// Tuck the Active ListGroup into the Tag property:
_ListGroupContextMenu.Tag = lg;
// If the header is right-clicked, the user has not indicated an item to edit or delete.
// Disable those options:
_editOption.Enabled = false;
_deleteOption.Enabled = false;
// Because we are not using the GroupedList's own ContextMenuStrip,
// we need to use the PointToClient method so that the menu appears
// in the correct position relative to the control:
_ListGroupContextMenu.Show(lg, lg.PointToClient(MousePosition));
}
void lg_MouseClick(object sender, MouseEventArgs e)
{
ListGroup lg = (ListGroup)sender;
ListViewHitTestInfo info = lg.HitTest(e.X, e.Y);
ListViewItem item = info.Item;
if (e.Button == MouseButtons.Right)
{
// Tuck the Active ListGroup into the Tag property:
_ListGroupContextMenu.Tag = lg;
// Make sure the Delete and Edit options are enabled:
_editOption.Enabled = true;
_deleteOption.Enabled = true;
// Because we are not using the GroupedList's own ContextMenuStrip,
// we need to use the PointToClient method so that the menu appears
// in the correct position relative to the control:
_ListGroupContextMenu.Show(lg, lg.PointToClient(MousePosition));
}
}