Authorize.Net payment Integration using C# / ASP.NET
protected void btnnext_Click(object sender, EventArgs e) { string[] objRetVals; string str = readHtmlPage("https://secure.authorize.net/gateway/transact.dll"); objRetVals = Convert.ToString(str).Split('|'); if (objRetVals[0].ToString() == "1") {//Save order to database } } private String readHtmlPage(string url) { String result = ""; String strPost = "x_login=LOGIN&x_tran_key=TRANSKey&x_method=CC&x_type=AUTH_CAPTURE&x_amount=AMOUNT&x_delim_data=TRUE&x_delim_char=|&x_relay_response=FALSE&x_card_num=CARDNo&x_exp_date=CARDEXP&x_version=3.1"; //---...