protected void Button1_Click(object sender, EventArgs e)
    {
        nsdoc.clsprf    obj    = new nsdoc.clsprf();
        nsdoc.clsprfprp objprp = new nsdoc.clsprfprp();
        objprp.prfloc    = DropDownList1.SelectedValue;
        objprp.prfusrcod = Convert.ToInt32(Session["cod"]);
        objprp.prfgnd    = Convert.ToChar(RadioButtonList1.SelectedValue);
        objprp.prfdsc    = TextBox2.Text;
        objprp.prfdob    = TextBox1.Text;
        String pic = FileUpload1.PostedFile.FileName;

        if (pic != "")
        {
            pic = pic.Substring(pic.LastIndexOf('.'));
        }
        objprp.prfpic = pic;
        if (ViewState["cod"] == null)
        {
            obj.Save_Rec(objprp);
        }
        else
        {
            objprp.prfcod = Convert.ToInt32(ViewState["cod"]);
            if (pic == "")
            {
                objprp.prfpic = ViewState["pic"].ToString();
            }
            obj.update_rec(objprp);
        }
        if (pic != "")
        {
            FileUpload1.PostedFile.SaveAs(Server.MapPath("../prfpic") + "//" +
                                          Session["cod"].ToString() + pic);
        }
    }