protected void Button1_Click(object sender, EventArgs e)
 {
     pl.inserted_by  = Session["emp_code"].ToString();
     pl.complain     = TextBox1.Text;
     pl.remark       = TextBox2.Text;
     pl.pateint_code = Session["pateint_code"].ToString();
     pl.opd_code     = Session["opd_code"].ToString();
     objb.add_opd_complain(pl);
     BindData();
 }