private void lookUpEdit1_EditValueChanged(object sender, EventArgs e)
 {
     if(lkMode.EditValue !=null)
     {
         Balance balance = new Balance();
         balance.GetSOHByMode(Convert.ToInt32(lkMode.EditValue));
         gridSOH.DataSource = balance.GetSOHByMode(Convert.ToInt32(lkMode.EditValue));
     }
 }