private void lstDrawings_SelectedIndexChanged(object sender, System.EventArgs e)
{
if (frmParent != null)
{
if (lstDrawings.SelectedIndex >= 0)
{
DrawingItem obj = (DrawingItem)lstDrawings.Items[lstDrawings.SelectedIndex];
frmParent.SelectDrawing(obj.DrawingId);
ShowProperties(obj);
}
}
}