i want to know about paypall system and how to implement in my project ? can any body help me ?

Question

i m implementing a project which needs the paypal module and kindly suggest me some source code . thanks and regards ?

Answer 1

You need to setup paypal to your site. As per them, it's very easy. See here
https://www.paypal.com/cgi-bin/webscr?cmd=_wp-standard-integration-outside

Here mentioned many variation of accounts to be created.

Answer 2

you can use .NET SDK for Payflow Pro classes, your application sends a transaction request to a Payflow Pro host, where Payflow Pro server processes the request and then sends back a transaction response to your application to notify you of the transaction status. In the request and response cycle, a credit card transaction is accomplished and funds are moved in or out of your bank account that is linked to your Payflow Pro payment gateway account.

For testing : pilot-payflowpro.paypal.com

For production: payflowpro.paypal.com

Transaction Request

TRXTYPE=S&TENDER=C&ACCT=5105105105105100&EXPDATE=1209&CVV2=123&AMT=99.00
&FIRSTNAME=John&LASTNAME=Smith&STREET=123 Main St.&CITY=SanHose
&STATE=CA&ZIP=12345&COMMENT1=Reservation&USER=MyUser&PWD=MyPassword
&VENDOR=MyVendor&PARTNER=MyPartner

Transaction Response

RESULT=0&PNREF=EFHP0D426A53&RESPMSG=APPROVED&AUTHCODE=25TEST&
AVSADDR=Y&AVSZIP=N&CVV2MATCH=Y

 protected void btnSubmit_Click(object sender, EventArgs e)
    {
        try
        {
            string PayPalRequest = "TRXTYPE=S" //S - sale transaction
                 + "&TENDER=C" //C - Credit card
                 + "&ACCT=" + txtCardNumber.Text //card number
                 + "&EXPDATE=" + ddlMonth.SelectedValue +
ddlYear.SelectedValue.Substring(2, 2)
                 + "&CVV2=" + txtCvv.Text   //card validation value (card security code)
                 + "&AMT=" + txtAmount.Text
                 + "&COMMENT1=My Product Sale"
                 + "&USER=" + ConfigurationManager.AppSettings["USER"]
                 + "&VENDOR=" + ConfigurationManager.AppSettings["VENDOR"]
                 + "&PARTNER=" + ConfigurationManager.AppSettings["PARTNER"]
                 + "&PWD=" + ConfigurationManager.AppSettings["PWD"];

            // Create an instance of PayflowNETAPI.
            PayflowNETAPI PayflowNETAPI = new PayflowNETAPI();

            // RequestId is a unique string that is required for each & every transaction.
            // The merchant can use her/his own algorithm to generate
            // this unique request id or use the SDK provided API to generate this
            // as shown below (PayflowUtility.RequestId).
            string PayPalResponse = PayflowNETAPI.SubmitTransaction
(PayPalRequest, PayflowUtility.RequestId);
           
            //place data from PayPal into a namevaluecollection
            NameValueCollection RequestCollection =
GetPayPalCollection(PayflowNETAPI.TransactionRequest);
            NameValueCollection ResponseCollection = GetPayPalCollection(PayPalResponse);

            //show request
            lblResult.Text = "<span class=\"heading\">
PayPal Payflow Pro transaction request</span><br />";
            lblResult.Text += ShowPayPalInfo(RequestCollection);

            //show response
            lblResult.Text += "<br /><br /><span class=\"heading\">
PayPal Payflow Pro transaction response</span><br />";
            lblResult.Text += ShowPayPalInfo(ResponseCollection);
               
            //show transaction errors if any
            string TransErrors = PayflowNETAPI.TransactionContext.ToString();
            if (TransErrors != null && TransErrors.Length > 0)
            {
                lblResult.Text += "<br /><br /><span class=\"bold-text\">
Transaction Errors:</span> " + TransErrors;
            }

            //show transaction status
            lblResult.Text += "<br /><br /><span class=\"bold-text\">
Status:</span> " + PayflowUtility.GetStatus(PayPalResponse);
        }
        catch (Exception ex)
        {
            lblError.Text = ex.Message.ToString();
        }
    }

    private NameValueCollection GetPayPalCollection(string payPalInfo)
    {
        //place the responses into collection
        NameValueCollection PayPalCollection =
new System.Collections.Specialized.NameValueCollection();
        string[] ArrayReponses = payPalInfo.Split('&');

        for (int i = 0; i < ArrayReponses.Length; i++)
        {
            string[] Temp = ArrayReponses[i].Split('=');
            PayPalCollection.Add(Temp[0], Temp[1]);
        }
        return PayPalCollection;
    }
    private string ShowPayPalInfo(NameValueCollection collection)
    {
        string PayPalInfo = "";
        foreach (string key in collection.AllKeys)
        {
            PayPalInfo += "<br /><span class=\"bold-text\">" +
key + ":</span> " + collection[key];
        }
        return PayPalInfo;
    }
}

Answer 3

Hi Sukh,

Please refer the below links

http://www.codeproject.com/KB/aspnet/paypal_c_aspnet.aspx

http://www.codeproject.com/KB/aspnet/UsePayPalPaymentInASPNET.aspx

http://www.codeproject.com/Articles/152280/Online-Credit-Card-Transaction-in-ASP-NET-Using-Pa

http://www.dotnetfunda.com/articles/article928-online-payments-using-paypal-integration-with-aspnet.aspx


Thanks