private void chkActSar_CheckedChanged(object sender, EventArgs e)
 {
     try
     {
         if (chkActSar.Checked)
         {
             cmbSaraya.Enabled = true;
             if (code == "B")
             {
                 DataTable dt = ClassQuotation.sp_fillSaraQout((int)cmbBrigade.SelectedValue, (int)cmbBattalion.SelectedValue);
                 cmbSaraya.DataSource    = dt;
                 cmbSaraya.DisplayMember = "Saraya_name";
                 cmbSaraya.ValueMember   = "Saraya_id";
             }
         }
         else
         {
             cmbSaraya.Enabled = false;
         }
     }
     catch (Exception ex)
     {
         chkActSar.Checked = false;
         MessageBox.Show("Select Battalion First");
     }
 }