private void BindData()
    {
        DataSet       ds        = new DataSet();
        StringBuilder htmlTable = new StringBuilder();

        ds = objb.getmedication_byprncode(Session["prn"].ToString(), TextBox21.Text);

        htmlTable.Append("<table style='width:100%' border=1px>");
        htmlTable.Append("<tr ><th>NO.</th><th>NAME</th><th>DOSE</th><th>ROUTE</th><th>FREQUENCY</th><th>TIME</th></tr>");

        if (!object.Equals(ds.Tables[0], null))
        {
            if (ds.Tables[0].Rows.Count > 0)
            {
                for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
                {
                    htmlTable.Append("<tr>");
                    htmlTable.Append("<td align='center'>" + i + 1 + "</td>");
                    htmlTable.Append("<td align='center'>" + ds.Tables[0].Rows[i]["category"] + "." + ds.Tables[0].Rows[i]["drug"] + "</td>");
                    htmlTable.Append("<td align='center'>" + ds.Tables[0].Rows[i]["dose"] + "</td>");
                    htmlTable.Append("<td align='center'>" + ds.Tables[0].Rows[i]["route"] + "</td>");
                    htmlTable.Append("<td align='center'>" + ds.Tables[0].Rows[i]["frequency"] + "</td>");
                    htmlTable.Append("<td align='center'>" + ds.Tables[0].Rows[i]["timea"] + "------" + ds.Tables[0].Rows[i]["timeb"] + "------" + ds.Tables[0].Rows[i]["timec"] + "------- " + ds.Tables[0].Rows[i]["timed"] + " </td>");
                    htmlTable.Append("</tr>");
                }
                htmlTable.Append("</table>");
            }
            else
            {
                htmlTable.Append("<tr>");
                htmlTable.Append("<td align='center' colspan='4'>There is no Record.</td>");
                htmlTable.Append("</tr>");
            }
        }
    }