如何在ASP.NET C＃中使用jquery post？

Question

hi i had this function in my previous php site for posting data and getting response on page, but i can't figure it out in aspx page (not using mvc). here is the code:

$.post('contact.aspx/submitdata', data, function () {
    alert_msg.fadeOut();
    form.find('.msg-thanks').fadeIn(function () {

        textarea.val(textarea.attr('title'));

        window.setTimeout(function () {
            form.find('.msg-thanks').fadeOut();
        }, 5000);

    });
});

previously it was:

$.post('mail/send.php', data, function () {
    alert_msg.fadeOut();
    form.find('.msg-thanks').fadeIn(function () {

        textarea.val(textarea.attr('title'));

        window.setTimeout(function () {
            form.find('.msg-thanks').fadeOut();
        }, 5000);

    });
});

An the worst part is the method invoked doesnt come into debugging calls. here is the method:

[WebMethod]
public void SubmitData(string[] data) {
    //do something;
}

Answer 1

The webmethod should be static. You also need to set content type.

[WebMethod]
public static void SubmitData(string[] data) {
    //do something;
}

$.ajax({
           url: "contact.aspx/submitdata",
           type: "POST",
           contentType: "application/json; charset=utf-8",
           data: data
      })
      .done(function (data) { //do something here on success})
      .fail(function (jqXHR, status) { //error });