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2. Nest形元素,锁定深度
原标题:Nested sortable elements, lock depth

I m having a hard time trying to lock the depth of nested sortable elements, so that they can only sort up and down among their direct siblings.

我认为我这样做了,但我仍然能够把儿童物品从母子中删除,反之亦然。

var $sort = $(  #outside-wrapper  ).sortable({

    axis  :  y ,
    items :  .item ,
    start : function( event, ui ) {
        // dynamically set the containment to the item s direct parent once started
        $sort.sortable(  option ,  containment , ui.item[0].parentNode );
    }

});

这里是标志要求的一个例子;

<div class="item">

    <div class="item"><!-- content --></div>

    <div class="item">

        <div class="item"><!-- content --></div>

        <div class="item">

            <div class="item"><!-- content --></div>    

        </div>

    </div>

</div>

赞赏任何要点!

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