Payu-dotnet.cs

public void PayNow()
{
//initialize
tokenContext.setPaymentMessageSession(null);
ViewData["PaymentMessage"] = null;
EMedical.DataModel.UserLabTest labTest = tokenContext.getCurrentUserTest();
if (labTest != null)
{
 string firstName = labTest.PatientName;
 string amount = labTest.PayablePrice.ToString();
 string productInfo = "Lab Product Purchase Online";
 string email = labTest.Email;
 string phone = labTest.ContactNumber;
 RemotePost myremotepost = new RemotePost();
 string key = ConfigurationManager.AppSettings["MERCHANT_KEY"];
 string salt = ConfigurationManager.AppSettings["SALT"];
 var DomainName = System.Web.HttpContext.Current.Request.Url.Host;
 //posting all the parameters required for integration.
 myremotepost.Url = ConfigurationManager.AppSettings["PAYU_BASE_URL"];
 myremotepost.Add("key", ConfigurationManager.AppSettings["MERCHANT_KEY"]);
 string txnid = Generatetxnid();
 myremotepost.Add("txnid", txnid);
 myremotepost.Add("amount", amount);
 myremotepost.Add("productinfo", productInfo);
 myremotepost.Add("firstname", firstName);
 myremotepost.Add("phone", phone);
 myremotepost.Add("email", email);
 myremotepost.Add("surl", "http://" + DomainName + "/User/Return");//Change the success url here depending upon the port number of your local system.
 myremotepost.Add("furl", "http://" + DomainName + "/User/Return");//Change the failure url here depending upon the port number of your local system.
 myremotepost.Add("service_provider", "payu_paisa");

 string hashString = key + "|" + txnid + "|" + amount + "|" + productInfo + "|" + firstName + "|" + email + "|||||||||||" + salt;
 string hash = Generatehash512(hashString);
 myremotepost.Add("hash", hash);
 myremotepost.Post();
}
}
[AllowAnonymous]
public ActionResult Return(FormCollection form=null)
{
try
{
string[] merc_hash_vars_seq;
string merc_hash_string = string.Empty;
string merc_hash = string.Empty;
string order_id = string.Empty;
string hash_seq = "key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5|udf6|udf7|udf8|udf9|udf10";
if (form["status"].ToString() == "success")
{
 merc_hash_vars_seq = hash_seq.Split('|');
 Array.Reverse(merc_hash_vars_seq);
 merc_hash_string = ConfigurationManager.AppSettings["SALT"] + "|" + form["status"].ToString();
 foreach (string merc_hash_var in merc_hash_vars_seq)
 {
  merc_hash_string += "|";
  merc_hash_string = merc_hash_string + (form[merc_hash_var] != null ? form[merc_hash_var] : "");
 }
 Response.Write(merc_hash_string);
 merc_hash = Generatehash512(merc_hash_string).ToLower();
 order_id = Request.Form["txnid"];
}
else
{
  tokenContext.setPaymentMessageSession("Payment Fails! Order Pending to save.");
}
}
catch (Exception ex)
{
  ViewData["PaymentMessage"] = "Payment Fails! Order Pending to save.";
}
return RedirectToAction("ActionName");
}

how to display custome invoice as only: txnid|amount|firstname|email in deferent LABEL in asp.net