jQuery可拖动只允许1个图像可拖动 [英] jQuery Draggable only allowing 1 image to be draggable
本文介绍了jQuery可拖动只允许1个图像可拖动的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
为什么是这样?
$(document).ready(function(){
$(#draggable)。each(function(){
$ (this).draggable({
revert:function(dropped){
var dropped = dropped&&& drop [0] .id ==droppable;
if(! );
return!drop;
}
});
});
$(#droppable)。droppable({
drop:function(event,ui){
var AlbumToAdd = ui.draggable.data(id);
if(AlbumToAdd!=''){
//执行ajax post
$ .post(/ ShoppingCart / DragToCart,{id:AlbumToAdd},
函数(d ata){
//成功请求到达
//更新页面元素
$('#cart-total')。text(data.CartTotal);
});
}
}
});
});
如果您需要查看更多代码
解决方案
通常 id 应该是唯一的。所以这样做 $(#draggable)。每个...
通常不是一个好习惯。将此更改为类选择器应该可以解决问题。
因此将其转换为:
code> $(。draggable)。each(function(){...
你的html进入
< div class =draggableclass =ui-widget-content>
< p>将我拖到< / p>
< / div>
您可以看到我的工作示例(简化) here 。
I have a page full of images, album artwork to be precise. I have added code to make it draggable and it will only allow me to drag the first image on the page.
Why is this?
$(document).ready(function () {
$("#draggable").each(function () {
$(this).draggable({
revert: function (dropped) {
var dropped = dropped && dropped[0].id == "droppable";
if (!dropped);
return !dropped;
}
});
});
$("#droppable").droppable({
drop: function (event, ui) {
var AlbumToAdd = ui.draggable.data("id");
if (AlbumToAdd != '') {
// Perform the ajax post
$.post("/ShoppingCart/DragToCart", { "id": AlbumToAdd },
function (data) {
// Successful requests get here
// Update the page elements
$('#cart-total').text(data.CartTotal);
});
}
}
});
});
Comment if you need to see more code
解决方案
Usually id's are supposed to be unique. So doing $("#draggable").each...
is usually not a good practise. Changing this into a class selector should solve the issue.
So transform it into:
$(".draggable").each(function () { ...
And your html into
<div class="draggable" class="ui-widget-content">
<p>Drag me around</p>
</div>
You can see my working example (simplified) here.
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