确认提交后如何提交表格？ jQuery，AJAX

Question

Good day, I have a simple html page containing this form:

<form:form method="post" action="details" modelAttribute="code">
  <form:input path="code"/>
  <br/>
  <input type="submit" value="Submit" />
</form:form>

When I press the Submit button I need to check whether there are some records in the database for given code using jQuery AJAX. If yes then popup jQuery UI dialog to ask user whether he really wants to display record details (because it's a paid service). If he confirms I need to submit the form. This is my script on the html page:

$(document).ready(function() {

  // Bind an event handler to the submit event
  $('form#code').submit( function() {

    // Check whether there are some records in the DB using AJAX
    $.ajax({
      url: 'getResultCount',
      type: 'post',
      dataType: 'html',
      data: $("form#code").serialize(),
      success: function(result) {
        if(result == 'null') {
          $('div#results').html('<p>No records found for ' + $('input#code').val() + '.</p>');
        } else {
          // At leat one record was found so ask the user
          $('#dialog-confirm').dialog({
            resizable: false,
            draggable: false,
            height: 240,
            width: 450,
            modal: true,
            buttons: {
              "Display details": function() {
                // User confirmed, submit the form
                $('form#code').submit();
              },
              Cancel: function() {
                $(this).dialog("close");
              }
            }
          });
        }
      }
    });

    return false;
  });

});

When I press "Display details" button nothing happens. I think it is because I'm entering the same submit handler which returns false. How to solve it so that form submit is executed? Please advise. Thank you in advance. Vojtech

Answer 1

Change

$('form#code').submit();

to

$('form#code')[0].submit(); 

It will skip the jQuery onsubmit function.

Basic example: http://jsfiddle.net/4Ax6m/

Answer 2

There is one simple answer: Do not use <input type="submit" ... /> .

You can instead use <button onlick="handler()">Submit</button> , where handler() is your function bound to the submit-event of the form in the above code. If your handler decides that the form should be submitted just submit it programmatically. Edit: Which is actually already in your code.

Answer 3

You'd need to wait for the .ajax to succeed since it is currently running in async mode.

So disable it using the async option on ajax . Documentation Here

ANSWER SPECIFICALLY FOR YOU

JS

$(document).ready(function () {
    // Bind an event handler to the submit event
    $('form#code').submit(function () {
        // Check whether there are some records in the DB using AJAX
        $.ajax({
            url: 'getResultCount',
            type: 'post',
            dataType: 'html',
            data: $("form#code").serialize(),
            async: false,
            success: function (result) {
                if (result == 'null') {
                    $('div#results').html('<p>No records found for ' + $('input#code').val() + '.</p>');

                    //No Records found, submitting!!
                    return true;
                } else {
                    // At leat one record was found so ask the user
                    $('#dialog-confirm').dialog({
                        resizable: false,
                        draggable: false,
                        height: 240,
                        width: 450,
                        modal: true,
                        buttons: {
                            "Display details": function () {
                                // User confirmed, submit the form
                                return true;
                            },
                            Cancel: function () {
                                //TODO: Don't think you need this line?
                                $(this).dialog("close");

                                //CANCEL!!!
                                return false;
                            }
                        }
                    });
                    //User skipped Dialog somehow...ignoring....DO NOT SUBMIT
                    return false;
                }
            }
        });
    });
});

Note: This will return true and false to continue the submit process to the server