求JQuery EASYUI 和C# WEB开发教程

 那么你没有发布任何你的HTML标记，并且你没有发布“ajaxElementCall”函数的细节。 因此很难说你应该如何解决这个问题。 不过，在每次“丢弃”事件时，您最终都会再次调用“dragDrop（）”设置函数。 你说“ajaxElementCall”会重新加载页面的某些部分，但是你的“dragDrop（）”代码总是在页面上的所有 “.drag”和“.drop”元素上安装新的事件处理程序。 如果“ajaxElementCall”只更新页面的一部分 ，则所有未更改的“.drag”和“.drop”元素将获得堆叠的其他事件处理程序。 
 
 当您为某个选择器调用.hover() .click()或.hover() ，jQuery 会将您提供的事件处理程序添加到已注册的一组处理程序中。 因此，由于每次调用“dragDrop（）”时都会注册新的事件处理程序，因此会越来越多地堆积起来。 事件发生时， 所有这些处理程序都将运行。 
 
 可能你需要做的是改变“dragDrop（）”，这样你就可以告诉它只能在页面的特定部分进行操作。 要么，要么在运行时应该“标记”它影响的每个元素，然后在应用新的事件处理程序之前检查该标记。 这样它只会影响新加载的代码。 （但是，缩小搜索范围会更有效;表达式$('.drag')可能需要查看页面上的每个DOM元素 ，所以最好使用更精确的东西。） 

Well you have not posted any of your HTML markup, and you have not posted the details of what the "ajaxElementCall" function does. Therefore it's hard to say exactly how you should fix the problem. It is true however that on every "drop" event, you end up calling the "dragDrop()" setup function again. You say that "ajaxElementCall" reloads some portion of the page, but your "dragDrop()" code always installs new event handlers on all ".drag" and ".drop" elements on the page. If "ajaxElementCall" only updates part of the page, then all the unchanged ".drag" and ".drop" elements will get additional event handlers piled on.
 
When you call .click() or .hover() for some selector, jQuery adds the event handler you supply to the set of handlers already registered. Thus, because you register new event handlers every time "dragDrop()" is called, you'll get more and more piled up. When an event happens, all of those handlers will be run.
 
Probably what you need to do is change "dragDrop()" so that you can tell it to only operate on a particular fraction of the page. Either that, or else when it runs it should "mark" each element it affects and then check for that mark before applying new event handlers. That way it will only affect newly-loaded code. (It would be more efficient to narrow down the search, however; the expression $('.drag') may have to look through every DOM element on the page, so it would be preferable to use something more precise anyway.)