// the OnCellMouseDown is overriden so the control can check to see if the
// user clicked the + or - sign of the group-row
protected override void OnCellMouseDown(DataGridViewCellMouseEventArgs e)
{
if (e.RowIndex < 0)
{
return;
}
OutlookGridRow row = (OutlookGridRow)base.Rows[e.RowIndex];
if (row.IsGroupRow && row.IsIconHit(e))
{
System.Diagnostics.Debug.WriteLine("OnCellMouseDown " + DateTime.Now.Ticks.ToString());
row.Group.Collapsed = !row.Group.Collapsed;
//this is a workaround to make the grid re-calculate it's contents and backgroun bounds
// so the background is updated correctly.
// this will also invalidate the control, so it will redraw itself
row.Visible = false;
row.Visible = true;
}
else
{
base.OnCellMouseDown(e);
}
}
