protected void cbx_search_CheckedChanged(object sender, EventArgs e)
    {
        string strYH = Session["yh_name"].ToString().Trim();
        for (int i = 0; i < gridcl.Rows.Count; i++)
        {

            CheckBox cbxTemp = (CheckBox)gridcl.Rows[i].FindControl("cbx_search");
            if (cbxTemp.Checked)
            {
                if (DB.ConnectDBServer())
                {
                    string strBM = gridcl.Rows[i].Cells[1].Text;
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