How Can I Get Custom Response Back From Notify_Url From Paypal In Asp.Net?

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this the page through which i am sending a request for payment

C#

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1"  runat="server">
    <title>Untitled Page</title>
</head>
<body>
<!--form action for live transaction https://www.paypal.com/cgi-bin/webscr-->
    <form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post" id="form1"
        name="form1">
        <input type="hidden" name="cmd" value="_xclick"/>
        <input type="hidden" name="business" value="dharmendr90-facilitator@gmail.com"/><!--Paypal or sandbox Merchant account -->
        <input type="hidden" name="item_name" value="Books"/>
        <input type="hidden" name="uid" value="<%=Session["uid"] %>" />
        
        <input type="hidden" name="custom" value="<%=Session["Email"]%>"/><!--Custom Field for payer email -->
         <%--<input type="hidden" name="Email" value="dharmendr90@gmail.com"/>--%>
        <input type="hidden" name="item_number" value="1"/>
        <input type="hidden" name="amount" value="<%=Session["Amount"]%>"/>
        <input type="hidden" name="return" value="http://www.test.svpindore.com/Success.aspx"/><!--this page will be your redirection page -->
        <input type="hidden" name="cancel_return" value="http://www.test.svpindore.com/cancel.html"/>
        <input type="hidden" name="currency_code" value="USD"/>
        <input type="hidden" name="notify_url" value="http://www.test.svpindore.com/UpdatePayment.aspx"/><!--this should be your domain web page where you going to receive all your transaction variables -->
    </form>

    <script type="text/jscript">
        document.form1.submit();
    </script>

</body>
</html>

This is the notification page where i am updating a values in database but i am not getting custom response Request.form["uid"] and Request.form["custom"] apart from those custome values i am getting all values why ?

C#

string strSandbox = "https://www.sandbox.paypal.com/cgi-bin/webscr";
            // string strLive = "https://www.paypal.com/cgi-bin/webscr";
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(strSandbox);

            //Set values for the request back
            req.Method = "POST";
            req.ContentType = "application/x-www-form-urlencoded";
            byte[] param = Request.BinaryRead(HttpContext.Current.Request.ContentLength);
            string strRequest = Encoding.ASCII.GetString(param);
            strRequest += "&cmd=_notify-validate";
            req.ContentLength = strRequest.Length;


            string txnid = Server.HtmlEncode(Request.Form["txn_id"]);
            string receiv_email = Server.HtmlEncode(Request.Form["receiver_email"]);
            string business = Server.HtmlEncode(Request.Form["business"]);
            string payer_email = Server.HtmlEncode(Request.Form["payer_email"]);
            string tnx_type = Server.HtmlEncode(Request.Form["txn_Type"]);
            string payment_type = Server.HtmlEncode(Request.Form["payment_type"]);
            string payment_stat = Server.HtmlEncode(Request.Form["payment_status"]);
            string custom = Server.HtmlEncode(Request.Form["custom"]);
            string uid = Server.HtmlEncode(Request.Form["uid"]);
            using (SqlConnection sc = new SqlConnection(ConfigurationManager.ConnectionStrings["con"].ConnectionString))
            {
                string data = txnid + " " + receiv_email + " " + business + " " + payer_email + " " + tnx_type + " " + payment_type + " " + payment_stat + " " + custom + " ";
                sc.Open();
                SqlCommand cmd = new SqlCommand("Insert into PaymentData(data)Values('" + data + "')", sc);
                cmd.ExecuteNonQuery();


            }

            StreamWriter streamOut = new StreamWriter(req.GetRequestStream(),
                           System.Text.Encoding.ASCII);
            streamOut.Write(strRequest);
            streamOut.Close();
            StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream());
            string strResponse = streamIn.ReadToEnd();
            streamIn.Close();

 if (strResponse == "VERIFIED")
            {
                //UPDATE YOUR DATABASE

                using (SqlConnection sc = new SqlConnection(ConfigurationManager.ConnectionStrings["con"].ConnectionString))
                {

                    sc.Open();
                    SqlCommand cmd = new SqlCommand("Update Payment set transactionid='" + txnid + "',Status='" + payment_stat + "' where unicode='" + uid + "'", sc);
                    cmd.ExecuteNonQuery();


                }
  }
            else if (strResponse == "INVALID")
            {
                //UPDATE YOUR DATABASE
                using (SqlConnection sc = new SqlConnection(ConfigurationManager.ConnectionStrings["con"].ConnectionString))
                {

                    sc.Open();
                    SqlCommand cmd = new SqlCommand("Update Payment set transactionid='" + txnid + "',Status='" + payment_stat + "' where unicode='" + uid + "'", sc);
                    cmd.ExecuteNonQuery();


                }


            }
            else
            {
                using (SqlConnection sc = new SqlConnection(ConfigurationManager.ConnectionStrings["con"].ConnectionString))
                {

                    sc.Open();
                    SqlCommand cmd = new SqlCommand("Update Payment set transactionid='" + txnid + "',Status='" + payment_stat + "' where unicode='" + uid + "'", sc);
                    cmd.ExecuteNonQuery();


                }


            }
        }

    }
}

Posted 7-May-14 23:52pm

duke90

Updated 8-May-14 1:36am

Sampath Lokuge

v3

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Comments

ZurdoDev 8-May-14 7:39am

You should first ask paypal. It's much more likely you'll get a faster and more accurate response from them.

duke90 8-May-14 7:43am

thanks.I itself got an answer

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