[英]JQuery draggable: scroll not working when helper: clone is used
我有一个文件夹列表类型的情况,我可以使用jquery draggable / droppable将项目从一个文件夹拖到另一个文件夹。 文件夹项目是可拖动的,文件夹是可放置的。 它们位于一个小到足以显示垂直滚动条的div中。
我在可拖动项上设置了“scroll:true”,这样它们就可以使div滚动。 当我在可拖动项目上使用'helper:'clone“'时,滚动不再有效。
我究竟做错了什么?
这是一些非常简化的代码:
<div style="background-color: red; width: 500px; height: 100px; overflow: auto;">
<table id="nfTable" class="treeTable">
<tr><td><span class="parent initialized expanded">drop here</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
</table>
</div>
<script type="text/javascript" src="/js/jquery-1.3.2.min.js"></script>
// draggable and droppable in here:
<script type="text/javascript" src="/js/jquery-ui-1.7.2.custom.min.js"></script>
<script type="text/javascript">
$(function() {
$(".draggable").draggable({
// commenting the line below will make scrolling while dragging work
helper: "clone",
scroll: true,
revert: "invalid"
});
$(".droppable").droppable({
accept: ".draggable",
drop: function(e, ui) {
// todo
}
});
});
</script>
尝试使用div位置包裹溢出div:position; relative; 并添加位置:相对; 到你的溢出div。
<div style="position: relative;">
<div style="position:relative; background-color: red; width: 500px; height: 100px; overflow: auto;">
<table id="nfTable" class="treeTable">
<tr><td><span class="parent initialized expanded">drop here</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="draggable">drag me</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
<tr><td><span class="droppable">drop here</span></td></tr>
</table>
</div>
</div>
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