How can I autogenerate the PurchaseId?
I am following a tutorial from here: http://www.tandasoft.com/2011/05/05/using-authorize-net-dpm-direct-post-method-from-asp-net-web-form...
This part is trying to grab a PurchaseId from somewhere (unknown to me as to where), but I just want to have my application create the id automatically for me.
if (Session["PurchaseID"] != null)
{
nPurchaseID = (Int32)Session["PurchaseID"];
}
else
{
// You might throw here, but this is just an example, so assign a bogus PurchaseID
nPurchaseID = 1;
}
Here is my full code here:
protected void Page_Load(object sender, System.EventArgs e)
{
// In my application, I've already written the pending purchase to the database
// and assigned an ID before redirecting to this page.
if (Session["PurchaseID"] != null)
{
nPurchaseID = (Int32)Session["PurchaseID"];
}
else
{
// You might throw here, but this is just an example, so assign a bogus PurchaseID
nPurchaseID = 1;
}
// This is the way we get a Web Forms app to post to a different URL...
btnSubmit.PostBackUrl = "https://test.authorize.net/gateway/transact.dll";
strAuthorizeNet_x_amount = "175.00";
strAuthorizeNet_x_login = ConfigurationManager.AppSettings["AUTHORIZE_NET_API_LOGIN"];
strAuthorizeNet_x_first_name = "John";
strAuthorizeNet_x_last_name = "Doe";
strAuthorizeNet_x_address = "123 Main St";
strAuthorizeNet_x_city = "Anywhere";
strAuthorizeNet_x_state = "CO";
strAuthorizeNet_x_zip = "12345";
strAuthorizeNet_x_fp_timestamp = AuthorizeNet.Crypto.GenerateTimestamp().ToString();
strAuthorizeNet_x_fp_sequence = AuthorizeNet.Crypto.GenerateSequence();
strAuthorizeNet_x_relay_response = "TRUE";
strAuthorizeNet_x_test_request = "TRUE";
strAuthorizeNet_x_fp_hash = AuthorizeNet.Crypto.GenerateFingerprint(ConfigurationManager.AppSettings["AUTHORIZE_NET_TRANSACTION_KEY"], strAuthorizeNet_x_login, decimal.Parse(strAuthorizeNet_x_amount), strAuthorizeNet_x_fp_sequence, strAuthorizeNet_x_fp_timestamp);
// CRITICALLY IMPORTANT: This link must direct to your SIM.aspx page, and MUST be accessible...
// it will NOT work if your test/development web server is behind a firewall!!
// Also, if you use https, make sure your SSL certificate is signed and valid
// or Authorize.NET will reject the URL.
strAuthorizeNet_x_relay_url = ConfigurationManager.AppSettings["MainWebURL"] + "SIM.aspx";
// I'm not certain authorize.net will ever utilize this link... Authorize.NET simply hits your
// x_relay_url and relays the response contents to the client's browser. See SIM.aspx
// for more details.
strAuthorizeNet_x_receipt_link_url = ConfigurationManager.AppSettings["MainWebURL"] + "Thanks.aspx";
}
private int nPurchaseID;
public int PurchaseID
{
get { return nPurchaseID; }
}
private string strAuthorizeNet_x_fp_hash;
public string AuthorizeNet_x_fp_hash
{
get { return strAuthorizeNet_x_fp_hash; }
}
private string strAuthorizeNet_x_fp_timestamp;
public string AuthorizeNet_x_fp_timestamp
{
get { return strAuthorizeNet_x_fp_timestamp; }
}
private string strAuthorizeNet_x_fp_sequence;
public string AuthorizeNet_x_fp_sequence
{
get { return strAuthorizeNet_x_fp_sequence; }
}
private string strAuthorizeNet_x_login;
public string AuthorizeNet_x_login
{
get { return strAuthorizeNet_x_login; }
}
private string strAuthorizeNet_x_relay_url;
public string AuthorizeNet_x_relay_url
{
get { return strAuthorizeNet_x_relay_url; }
}
private string strAuthorizeNet_x_receipt_link_url;
public string AuthorizeNet_x_receipt_link_url
{
get { return strAuthorizeNet_x_receipt_link_url; }
}
private string strAuthorizeNet_x_relay_response;
public string AuthorizeNet_x_relay_response
{
get { return strAuthorizeNet_x_relay_response; }
}
private string strAuthorizeNet_x_test_request;
public string AuthorizeNet_x_test_request
{
get { return strAuthorizeNet_x_test_request; }
}
private string strAuthorizeNet_x_amount;
public string AuthorizeNet_x_amount
{
get { return strAuthorizeNet_x_amount; }
}
private string strAuthorizeNet_x_first_name;
public string AuthorizeNet_x_first_name
{
get { return strAuthorizeNet_x_first_name; }
}
private string strAuthorizeNet_x_last_name;
public string AuthorizeNet_x_last_name
{
get { return strAuthorizeNet_x_last_name; }
}
private string strAuthorizeNet_x_address;
public string AuthorizeNet_x_address
{
get { return strAuthorizeNet_x_address; }
}
private string strAuthorizeNet_x_city;
public string AuthorizeNet_x_city
{
get { return strAuthorizeNet_x_city; }
}
private string strAuthorizeNet_x_state;
public string AuthorizeNet_x_state
{
get { return strAuthorizeNet_x_state; }
}
private string strAuthorizeNet_x_zip;
public string AuthorizeNet_x_zip
{
get { return strAuthorizeNet_x_zip; }
}
public string CardNumber
{
get
{
if (strAuthorizeNet_x_test_request.Equals("TRUE"))
{
return "4111111111111111";
}
return "";
}
}
public string ExpirationDate
{
get
{
if (strAuthorizeNet_x_test_request.Equals("TRUE"))
{
return DateTime.Now.AddMonths(1).ToString("MM-yy");
}
return "";
}
}
public string CCV
{
get
{
if (strAuthorizeNet_x_test_request.Equals("TRUE"))
{
return "123";
}
return "";
}
}
public void Confirm()
{
Load += Page_Load;
}
