private void gridAttachments_MouseDown(object sender, MouseEventArgs e)
{
//A right click also needs to select an items so that the context menu will work properly.
if (e.Button == MouseButtons.Right)
{
int clickedIndex = gridAttachments.PointToRow(e.Y);
if (clickedIndex != -1)
{
gridAttachments.SetSelected(clickedIndex, true);
}
}
}
