JQuery实现div拖动效果，异步请求
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<meta charset="utf-8">
<script src="Js/jquery-1.10.2.js"></script>
<script src="Js/jquery-ui.js"></script>
<link href="Js/themes/base/jquery-ui.css" rel="stylesheet" />
<style>
#gallery { float: left; width: 65%; min-height: 12em; }
.gallery.custom-state-active { background: #eee; }
.gallery li { float: left; width: 96px; padding: 0.4em; margin: 0 0.4em 0.4em 0; text-align: center; }
.gallery li h5 { margin: 0 0 0.4em; cursor: move; }
.gallery li a { float: right; }
.gallery li a.ui-icon-zoomin { float: left; }
.gallery li img { width: 100%; cursor: move; }
#trash { float: right; width: 32%; min-height: 18em; padding: 1%; }
#trash h4 { line-height: 16px; margin: 0 0 0.4em; }
#trash h4 .ui-icon { float: left; }
#trash .gallery h5 { display: none; }
</style>
<script>
$(function () {
$.ajax({
url: 'Handler1.ashx',// 跳转到 action
type: 'post',
success: function (data) {
//alert(data);
$("#gallery").prepend(data);
fun1();
fun2();
}
});
// there's the gallery and the trash
var $gallery = $("#gallery"),
$trash = $("#trash");
function fun1() {
// let the gallery items be draggable
$("li", $gallery).draggable({
cancel: "a.ui-icon", // clicking an icon won't initiate dragging
revert: "invalid", // when not dropped, the item will revert back to its initial position
containment: "document",
helper: "clone",
cursor: "move"
});
// let the trash be droppable, accepting the gallery items
$trash.droppable({
accept: "#gallery > li",
activeClass: "ui-state-highlight",
drop: function (event, ui) {
deleteImage(ui.draggable);
}
});
// let the gallery be droppable as well, accepting items from the trash
$gallery.droppable({
accept: "#trash li",
activeClass: "custom-state-active",
drop: function (event, ui) {
recycleImage(ui.draggable);
}
});
}
// image deletion function
var recycle_icon = "<a href='link/to/recycle/script/when/we/have/js/off' title='Recycle this image' class='ui-icon ui-icon-refresh'>Recycle image</a>";
function deleteImage($item) {
$item.fadeOut(function () {
var $list = $("ul", $trash).length ?
$("ul", $trash) :
$("<ul class='gallery ui-helper-reset'/>").appendTo($trash);
$item.find("a.ui-icon-trash").remove();
$item.append(recycle_icon).appendTo($list).fadeIn(function () {
$item
.animate({ width: "48px" })
.find("img")
.animate({ height: "36px" });
});
});
}
// image recycle function
var trash_icon = "<a href='link/to/trash/script/when/we/have/js/off' title='Delete this image' class='ui-icon ui-icon-trash'>Delete image</a>";
function recycleImage($item) {
$item.fadeOut(function () {
$item
.find("a.ui-icon-refresh")
.remove()
.end()
.css("width", "96px")
.append(trash_icon)
.find("img")
.css("height", "72px")
.end()
.appendTo($gallery)
.fadeIn();
});
}
// image preview function, demonstrating the ui.dialog used as a modal window
function viewLargerImage($link) {
var src = $link.attr("href"),
title = $link.siblings("img").attr("alt"),
$modal = $("img[src$='" + src + "']");
if ($modal.length) {
$modal.dialog("open");
} else {
var img = $("<img alt='" + title + "' width='384' height='288' style='display: none; padding: 8px;' />")
.attr("src", src).appendTo("body");
setTimeout(function () {
img.dialog({
title: title,
width: 400,
modal: true
});
}, 1);
}
}
function fun2() {
// resolve the icons behavior with event delegation
$("ul.gallery > li").click(function (event) {
var $item = $(this),
$target = $(event.target);
if ($target.is("a.ui-icon-trash")) {
deleteImage($item);
} else if ($target.is("a.ui-icon-zoomin")) {
viewLargerImage($target);
} else if ($target.is("a.ui-icon-refresh")) {
recycleImage($item);
}
return false;
});
}
});
</script>
</head>
<body>
<div class="ui-widget ui-helper-clearfix">
<ul id="gallery" class="gallery ui-helper-reset ui-helper-clearfix">
<!-- <li class="ui-widget-content ui-corner-tr">
<h5 class="ui-widget-header">High Tatras 1 </h5>
<a href="link/to/trash/script/when/we/have/js/off" title="Delete this image" class="ui-icon ui-icon-trash">Delete image</a>
</li>
<li class="ui-widget-content ui-corner-tr">
<h5 class="ui-widget-header">High Tatras 2</h5>
<a href="link/to/trash/script/when/we/have/js/off" title="Delete this image" class="ui-icon ui-icon-trash">Delete image</a>
</li>
<li class="ui-widget-content ui-corner-tr">
<h5 class="ui-widget-header">High Tatras 3</h5>
<a href="link/to/trash/script/when/we/have/js/off" title="Delete this image" class="ui-icon ui-icon-trash">Delete image</a>
</li>
<li class="ui-widget-content ui-corner-tr">
<h5 class="ui-widget-header">High Tatras 4</h5>
<a href="link/to/trash/script/when/we/have/js/off" title="Delete this image" class="ui-icon ui-icon-trash">Delete image</a>
</li>-->
</ul>
<div id="trash" class="ui-widget-content ui-state-default">
<h4 class="ui-widget-header"><span class="ui-icon ui-icon-trash">Trash</span> Trash</h4>
</div>
</div>
</body>
</html>
添加一个一般处理程序
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace WebApplication1
{
/// <summary>
/// Handler1 的摘要说明
/// </summary>
public class Handler1 : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
string[] s = { "1","2","3","4"};
string str = "";
for (int i = 0; i < s.Length; i++)
{
// str += string.Format (" <li class=\"ui-widget-content ui-corner-tr ui-draggable\"> <h5 class=\"ui-widget-header\"></h5> <a class=\"ui-icon ui-icon-zoomin\" title=\"View larger image\" href=\"images/high_tatras.jpg\"></a> <a class=\"ui-icon ui-icon-trash\" title=\"Delete this image\" href=\"link/to/trash/script/when/we/have/js/off\"></a></li>");
str += string.Format("<li class=\"ui-widget-content ui-corner-tr ui-draggable\" style=\"display: list-item; width: 96px;\"> <h5 class=\"ui-widget-header\"></h5> <a class=\"ui-icon ui-icon-trash\" title=\"Delete this image\" href=\"link/to/trash/script/when/we/have/js/off\"></a></li>");
}
context.Response.Write(str);
}
public bool IsReusable
{
get
{
return false;
}
}
}
}
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