private void button22_Click(object sender, EventArgs e)
        {
            zkktianjia tj = new zkktianjia();

            tj.ShowDialog();
            zkk();
        }
 private void button21_Click(object sender, EventArgs e)
 {
     try
     {
         zkktianjia xg = new zkktianjia();
         xg.ID = int.Parse(dataGridView1.CurrentRow.Cells[0].Value.ToString());
         xg.bl = true;
         xg.ShowDialog();
         zkk();
     }
     catch (Exception)
     {
     }
 }