为什么要提交Ajax表单？

我知道这个问题已经问过无数次了，我看过几个例子，但我还是不知道为什么要提交这个表格。Ajax似乎没有被调用，所以我认为它就是简单的divid问题。这30分钟我一直觉得很沮丧......

JS:

$('#genform').submit(function (e) {
    alert('hi');
    e.preventDefault();
    $.ajax({
        url: "month.php",
        type: "post",
        data: $('#form').serialize(),
        success: function (msg) {
            $("#info").html(msg);
        }
    });
});

HTML:

<!-- trigger button -->
<div class="col-md-4">
<a href="#" id="toggle" class="btn btn-default dropdown-toggle btn-sm"> Bulk PDF Export <span class="caret"></span></a> 
</div>
<!--- popup form div -->
<div id="gendiv" style="display:none;">
    <form id="genform">
        <div class="form-input">
            <select name="month">
                <option value="2013-09-01">September 2013</option>
                <option value="2013-08-01">August 2013</option>
                <option value="2013-07-01">July 2013</option>
            </select>
        </div>
        <div class="form-input"><i class="icon-ellipsis-horizontal"></i> PGY-1  <span class="pull-right"><input type="checkbox" id="pgy1" checked name="pgy[1]"></span> 
        </div>
        <div class="form-input"><i class="icon-ellipsis-horizontal"></i> PGY-2  <span class="pull-right"><input type="checkbox" id="pgy2" checked name="pgy[2]"></span> 
        </div>
        <div class="form-input"><i class="icon-ellipsis-horizontal"></i> PGY-3  <span class="pull-right"><input type="checkbox" id="pgy3" checked name="pgy[3]"></span> 
        </div>
        <div class="form-input" style="text-align:center">
            <button type="submit" class="btn btn-primary btn-xs">Generate</button>
        </div>
        <div id="info"></div>
    </form>
</div>

Fiddle: http://jsfiddle.net/KQ2nM/2/

You are missing some closing tags:

<div class="form-input">
    <i class="icon-ellipsis-horizontal"></i> PGY-1 <span class="pull-right">
        <input type="checkbox" id="pgy1" checked name="pgy[1]">   </input>    <--- here
    </span>
</div>

And the form method (otherwise it spits up an error):

<form id="genform" method="POST">

Now django complains about the CSRF token, but that's your stuff ;)
Here's the new Fiddle.

EDIT: It seems like I got it wrong since now it submits without calling your custom handler and Joe fixed it. But you still need to close those inputs :)

The reason it's not working is because the popover clones the form and then places the html inside a div with the class .popover-content.

This means that the event you bound is only attached to the original #genform which is inside the hidden #gendiv.

Use this instead:

$(document).on('submit', '#genform', function(e) {
    e.preventDefault();
    $.ajax({
        url: "month.php",
        type: "post",
        data: $(this).serialize(),
        success: function (msg) {
            $("#info").html(msg);
        }
    });
});

This uses jQuery's .on() function and attaches an event handler to the document which basically watches for a submit event triggered on a form with the id #genform. By attaching the event handler to the document instead of directly to the target element it gets triggered by a submit event regardless of whether a form with the id #genform exists when the event is bound.

Here it is working: http://jsfiddle.net/KQ2nM/4/