带有按钮的可排序 jQuery UI 列表

Question

Following the examples in the jQuery UI demo and documentation , I'm using this HTML:

<ul class="sort">
  <li>
    <button>A</button>
  </li>
  <li>
    <button>B</button>
  </li>
  <li>
    <button>C</button>
  </li>
</ul>

And this JS:

$(function () {
  $('.sort').sortable();
})

But as seen in this JSFiddle example , the buttons are not drag-able.

How can I make .sortable() work with buttons?

Answer 1

Sortable provides a cancel selector to prevent sorting on specified elements. The default value includes <button> elements, and your sort handles are buttons, so sorting is prevented:

cancel
Type: Selector
Default: "input,textarea,button,select,option"
Prevents sorting if you start on elements matching the selector.

To solve this, set the cancel selector to an empty string:

 $('.sort').sortable({ cancel: '' });

 ul { list-style: none; margin: 0; padding: 0; width: 100px; } button { width: 100%; }

 <link href="//code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" rel="stylesheet" /> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="//code.jquery.com/ui/1.10.3/jquery-ui.js"></script> <ul class="sort"> <li><button>A</button></li> <li><button>B</button></li> <li><button>C</button></li> </ul>

View on JSFIddle

---

Also, you can specify the draggable handles for sortable() by using the handle option :

$('.sort').sortable({handle:'button'});

But in your case, the entire content of each <li> element is a <button> , so you won't need to specify it.

Answer 2

Ahhh, you know what? jQuery UI prevents .sortable() from working on buttons by default, as stated in the .cancel() section of the documentation ! Clearing this default allows the buttons to be sort-able like in this updated example .

The functional JS/jQuery looks like this:

$(function () {
  $('.sort').sortable({
    cancel: ''
  });
})