private void toolStripButton1_Click(object sender, EventArgs e)
 {
     AttributeTypeEditor popup = new AttributeTypeEditor();
     popup.ShowDialog();
 }
        private void toolStripButton3_Click(object sender, EventArgs e)
        {
            if (grid.SelectedCells.Count == 0)
                return;

            AttributeTypeEditor popup = new AttributeTypeEditor();
            DBAttrDescription attr = ((DBAttribute) grid.Rows[grid.SelectedCells[0].RowIndex].Tag).Description;
            popup.Attribute = attr;
            popup.ShowDialog();
        }