protected void ddlPayee_SelectedIndexChanged(object sender, EventArgs e)
 {
     if (ddlPayee.SelectedItem.Value != "0")
     {
         SqlDataReader sdr = uc.GetNameroomNo(ddlPayee.SelectedItem.Value);
         if (sdr.HasRows)
         {
             if (sdr.Read())
             {
                 string RoomNo = sdr["t_RoomNo"].ToString();
                 string Mobile = sdr["t_MobileNo"].ToString();
                 Session["t_MobileNo"]          = sdr["t_MobileNo"].ToString();
                 txtRoomNoMobile.Text           = RoomNo + " (" + Mobile + ")";
                 Session["t_RoomNo"]            = sdr["t_RoomNo"].ToString();
                 ddlDuesType.SelectedItem.Text  = "Room Rent";
                 ddlDuesType.SelectedItem.Value = "1";
                 txtDuesAmount.Text             = sdr["t_RentMoney"].ToString();
                 DateTime DateNow = System.DateTime.Now;
                 txtDuesDate.Text  = DateNow.ToString("yyyy-MM-dd");
                 txtDuesMonth.Text = DateNow.ToString("yyyy-MM");
             }
         }
         sdr.Close();
     }
 }