public void Post()
{
var task = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
string firstName = Name;
string amount = Totalamount;
string productInfo = "Test";
string email = Email;
string phone = mobile;
string surl = "";
string furl = "";
RemotePost myremotepost = new RemotePost();
string key = "JBZaLc";
string salt = "GQs7yium";
myremotepost.Url = "https://test.payu.in/_payment";
myremotepost.Add("key", "JBZaLc");
string txnid = await 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://sdsdsdsd");//Change the success url here depending upon the port number of your local system.
myremotepost.Add("furl", "http://www.google.com");//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;
await Generatehash512(hashString);
//string hashString = "3Q5c3q|2590640|3053.00|OnlineBooking|vimallad|[email protected]|||||||||||mE2RxRwx";
string hash = await Generatehash512(hashString);
myremotepost.Add("hash", hash);
myremotepost.PostURL();
}).AsTask();
}