如何调用客户端的JavaScript功能后，具体的UpdatePanel已经加载 [英] How to call a client side javascript function after a specific UpdatePanel has been loaded

问题描述

<$c$c>Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler)对我不起作用，因为这将触发之后的任何更新面板完成加载，我找不到任何客户端的方式找到这是一个

Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler) does not work for me because this will fire after ANY update panel finishes loading, and I can find no client side way to find which is the one

ScriptManager.GetCurrent（页）.AsyncPostBackSourceElementID AsyncPostBackSourceElementID 对我不起作用，因为这是一个服务器端的对象，我想客户端

ScriptManager.GetCurrent(Page).AsyncPostBackSourceElementID AsyncPostBackSourceElementID does not work for me as this is a server side object, and i want Client Side

客户方的.Net框架必须知道哪些UpdatePanel中被更新，以更新正确的内容。当然，还有一种方法可以挂接到这个活动？

The ClientSide .Net framework must know which UpdatePanel it is updating in order to update the correct content. Surely there is a way to hook into this event?

任何帮助将是AP preciated。

Any help would be appreciated.

推荐答案

您可以挂钩的 PageRequestManager.beginRequest 事件并检查<一href="http://msdn.microsoft.com/en-us/library/bb397485.aspx">BeginRequestEventArgs.postBackElement属性。

You can hook the PageRequestManager.beginRequest event and inspect the BeginRequestEventArgs.postBackElement property.

请注意，这不的真正的给你的UpdatePanel，但在UpdatePanel的内部控制。这应该是足够好的，但。

Note that it doesn't really give you the UpdatePanel, but the control inside of the UpdatePanel. That should be good enough, though.

编辑：更妙的是， PageRequestManager.pageLoaded 事件给你的PageLoadedEventArgs.panelsUpdated （和的panelsCreated ）的属性。

Even better, the PageRequestManager.pageLoaded event gives you PageLoadedEventArgs.panelsUpdated (and panelsCreated) properties.

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