private void showwaitfrm()
 {
     try
     {
         waitfrm = new frmWaitSearch();
         waitfrm.ShowDialog();
     }
     catch (Exception ex)
     {
         log.Write("批量收费界面:" + ex.ToString(), MsgType.Error);
     }
 }
 private void toolSearch_Click(object sender, EventArgs e)
 {
     if (cmbWaterFeeYear.Text == "" || cmbWaterFeeMonth.Text == "")
     {
         mes.Show("请选择抄表年份及月份!");
         return;
     }
     if (!Information.IsNumeric(txtRangeValue.Text))
     {
         mes.Show("波动范围只能为数字!");
         txtRangeValue.Focus();
         return;
     }
     dgList.DataSource = null;
     waitfrm           = new frmWaitSearch();
     bgWork.RunWorkerAsync();
     waitfrm.ShowDialog();
 }