javascript - jQuery UI's Sortable update event not firing -

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i'm using jquery ui's sortable , call function on update. here's code i'm trying now.

$(".sortable").sortable({     handle: '.handle'     , start: function (event, ui) {         console.log('started sorting ' + $(event.srcelement).index());         prev_sortable_index = $(event.srcelement).index();         $('.sortable li:not(.ui-state-highlight)').each(function () {             prev_list_elements.push($(this));             new_sort_order.push($(this).index());         });         console.log(new_sort_order);     }     , update: function (event, ui) {         alert("testing");     } });

after sorting, not receive alert message. if move 'update' above 'start', have same results. have tried adding alert start event, stop event, , update event. not errors or warnings, update event not seem fire. made sure not have preventdefault or stoppropagation interfering targeted elements.

edit: adding html

<ul class="sortable no-margin no-padding" style="list-style:none;">    <li class="item green-row"><span class="handle"><img src="~/images/handle.png" style="width:14px; margin-top:2px;" /></span>        <table style="width:97%;">           <tr style="background:none;">              <td style="width:130px;">plan check fee</td>              <td style="width:120px;">plan check</td>              <td style="width:80px;">-</td>              <td style="width:103px;">$1200.00</td>              <td style="width:113px;">-</td>              <td style="width:92px;">$100.00</td>              <td style="width:100px;">$1100.00</td>              <td style="width:88px;">$1100.00</td>           </tr>        </table>     </li>     <li class="item green-row"><span class="handle"><img src="~/images/handle.png" style="width:14px; margin-top:2px;" /></span>        <table style="width:97%;">           <tr style="background:none;">              <td style="width:130px;">plan check fee</td>              <td style="width:120px;">plan check</td>              <td style="width:80px;">-</td>              <td style="width:103px;">$1200.00</td>              <td style="width:113px;">-</td>              <td style="width:92px;">$100.00</td>              <td style="width:100px;">$1100.00</td>              <td style="width:88px;">$1100.00</td>           </tr>        </table>     </li>                                                </ul>

i able solve issue, , turns out conflict in javascript references. used jquery.sortable.js, went using sorting functionality of jquery ui's sort, failed remove reference jquery.sortable.js.


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