如何在asp.net网页表单中获取jsPOST

我知道这是一个基本的问题，但我对网络表单缺乏实践。我是第一次使用Stripe.js，并希望将其与Stripe.net结合使用来处理客户端。这是客户端代码：

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true"
CodeBehind="StripePage.aspx.cs" Inherits="StripePage.StripePage" %>
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">
<script type="text/javascript" src="https://js.stripe.com/v2/"></script>
<script type="text/javascript">
    // This identifies your website in the createToken call below
    // You need to put your real publish key here.
    Stripe.setPublishableKey('pk_test_1nDJ3hA1Mv2Sy9bUoYcBMXmm');
    // ...
    // I am using jquery to process the payment. It knows what form to 
    // process it on based on the name 'payment-form'
    jQuery(function ($) {
        //payment submission
        $('#payment-form').submit(function (event) {
            var $form = $(this);
            // Disable the submit button to prevent repeated clicks
            $form.find('button').prop('disabled', true);
            Stripe.createToken($form, stripeResponseHandler);
            // Prevent the form from submitting with the default action
            return false;
        });
        //if there is a error, it is displayed on the page if there was
        //no error this is where it gets sent to the server.
        var stripeResponseHandler = function (status, response) {
            var $form = $('#payment-form');
            if (response.error) {
                // Show the errors on the form
                $form.find('.payment-errors').text(response.error.message);
                $form.find('button').prop('disabled', false);
            } else {
                // token contains id, last4, and card type
                var token = response.id;
                // Insert the token into the form so it gets submitted to the server
                $form.append($('<input type="hidden" name="stripeToken" />').val(token));
                // and submit
                $form.get(0).submit();
            }
        };
    });
</script>
<form method="POST" id="paymentForm" runat="server">
    <span class="payment-errors" runat="server"></span>
    <div class="form-row">
        <label>
            <span>Card Number</span>
            <br />
            <input id="number" type="text" data-stripe="number" clientidmode="Static" />
            <input type="text" size="20" data-stripe="number" runat="server" />
        </label>
    </div>
    <div class="form-row">
        <label>
            <span>CVC</span>
            <br />
            <input type="text" size="4" data-stripe="cvc" runat="server" />
        </label>
    </div>
    <div class="form-row">
        <label>
            <span>Expiration (MM/YYYY)</span>
            <br />
            <input type="text" size="2" data-stripe="exp-month" runat="server" />
        </label>
        <br />
        <input type="text" size="4" data-stripe="exp-year" runat="server" />
    </div>
    <asp:Button ID="submit" ClientIDMode="Static" runat="server" Text="SubmitPayment" OnClick="submit_Click" />
</form>
</asp:Content>

JS中的最后一个调用创建了一个JSON对象，我想知道如何在C#页面上点击按钮：

protected void submit_Click(object sender, EventArgs e)
{
....
}

我想实现javascript，以避免必须遵守PCI。我是不是搞错了？是否应该全部使用Stripe.net来处理所有内容，并完全跳过js？或者，如果这是正确的，我如何在按钮点击事件中获得表单发布数据？