Paypal url return FAIL after order complete in Mvc 4

Paypal return id comes fail.what should i do?? I have tried a lot..but not working..

public string Cart_ConfirmOrder(string UnitId)
{
int Quantity = 0;
string name = "";
try
{
Session["Quantity"] = Quantity;
Session["UnitID"] = name;
Session["payamount"] = ConfigurationManager.AppSettings["payamount"].ToString();
//Session["payamount"] = AmountCount.ToString();
//Session["msg"] = " You Tag request has been submitted";
string redirecturl = "";
redirecturl +=
redirecturl += "https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_xclick&business=" + ConfigurationManager.AppSettings["BusinessEmail"].ToString();
////Product Name
//redirecturl += "&item_name=" + model.UnitId;
redirecturl += "&item_name=" + name;
////Payment Section
//redirecturl += "&amount=" + AmountCount.ToString();
redirecturl += "&amount=" + ConfigurationManager.AppSettings["payamount"].ToString();
////Add quatity i added one only statically
redirecturl += "&quantity=" + Quantity;
////Currency code
////redirecturl += "¤cy=";
////Tax charges if any, or available or using shopping cart system
redirecturl += "&tax=" + 0;
////Success return page url
redirecturl += "&return=" +
ConfigurationManager.AppSettings["ReturnUrl"].ToString();
////Failed return page url
redirecturl += "&cancel_return=" +
ConfigurationManager.AppSettings["CancelPurchaseUrl"].ToString();
////return Redirect(redirecturl);
return redirecturl;
//return retval;
}
catch (Exception ex)
{
throw ex;
}
}
public ActionResult GetResponse()
{
string TransactionIDc = Request.QueryString.Get("tx");
string transactionID = "";
var formVals = new Dictionary<string, string>();
formVals.Add("cmd", "_notify-synch"); //_notify-synch_notify-validate
formVals.Add("at", "AO6pILVgzXKfGZ4XyTdge9Zgmio.AbNUckZNoSqVHzWaFf8gWR0BPzqP"); // this has to be adjusted
formVals.Add("tx", Request["tx"]);
string response = GetPayPalResponse(formVals, true);
if (response.Contains("SUCCESS"))
{
transactionID = GetPDTValue(response, "txn_id"); // txn_id //d
string sAmountPaid = GetPDTValue(response, "mc_gross"); // d
string deviceID = GetPDTValue(response, "custom"); // d
string payerEmail = GetPDTValue(response, "payer_email"); // d
string Item = GetPDTValue(response, "item_name");
}
else
{
}
}
string GetPayPalResponse(Dictionary<string, string> formVals, bool useSandbox)
{
string paypalUrl = useSandbox ? "https://www.sandbox.paypal.com/cgi-bin/webscr"
: "https://www.paypal.com/cgi-bin/webscr";
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(paypalUrl);
// Set values for the request back
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
byte[] param = Request.BinaryRead(Request.ContentLength);
string strRequest = Encoding.ASCII.GetString(param);
StringBuilder sb = new StringBuilder();
sb.Append(strRequest);
foreach (string key in formVals.Keys)
{
sb.AppendFormat("&{0}={1}", key, formVals[key]);
}
strRequest += sb.ToString();
req.ContentLength = strRequest.Length;
//for proxy
//WebProxy proxy = new WebProxy(new Uri("http://urlort#");
//req.Proxy = proxy;
//Send the request to PayPal and get the response
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
string response = "";
using (StreamWriter streamOut = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII))
{
streamOut.Write(strRequest);
streamOut.Close();
using (StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream()))
{
response = streamIn.ReadToEnd();
}
}
return response;
}
string GetPDTValue(string pdt, string key)
{
string[] keys = pdt.Split('\n');
string thisVal = "";
string thisKey = "";
foreach (string s in keys)
{
string[] bits = s.Split('=');
if (bits.Length > 1)
{
thisVal = bits[1];
thisKey = bits[0];
if (thisKey.Equals(key, StringComparison.InvariantCultureIgnoreCase))
break;
}
}
return thisVal;
}

here "response" return FAIL after order complete.

I have changed the IPN notification setting in paypal also

1 Reply

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Naveen Bisht9y ago
Hey

can you use below link

http://stackoverflow.com/questions/9046028/paypal-return-url-page-and-variables

u should add hidden field with return name and set value using view bag.

i hope it will work.