__doPostBack重新加载整个页面，而不只是重新加载UpdatePanel [英] __doPostBack reloading entire page instead of just the UpdatePanel

问题描述

在我的JavaScript中，我有以下一行:

In my javascript, I have the following line:

__doPostBack('MyPanel', MyParam);

在后面的代码中，我使用MyParam查询数据库并将结果绑定到MyPanel updatepanel内的gridview. updatepanel的updatemode设置为有条件，在代码的回发部分中，我有MyPanel.Update();

In my code behind, I use MyParam to query a database and bind the result to a gridview that's inside the MyPanel updatepanel. The updatemode of the updatepanel is set to conditional and in the postback part of the code I have MyPanel.Update();

当我进行排序和分页时，updatepanel可以正常工作；仅刷新面板.但是，当我使用javascript触发updatepanel时，我在firebug中看到了显示整个页面正在刷新的流量.

The updatepanel works fine when I'm doing sorting and paging; only the panel is refreshed. However, when I trigger the updatepanel with my javascript, I see the traffic in firebug showing that the entire page is being refreshed.

有什么解决方案?

谢谢.

推荐答案

我的假设:您的更新面板位于命名容器内，因此其在客户端的ID与服务器端的ID略有不同.这意味着您将错误的__EVENTTARGET参数传递给客户端side __doPostBack函数，并且部分回发已满(表示不异步).

My assuption: your update panel is located inside the naming container, so its id in the client side will be a little bit different from the server side ID. This means you pass the wrong __EVENTTARGET parameter to the client side __doPostBack function and your partial postback became full(meaning not async).

因此将您的客户端代码更改为:

So changing your client code to:

__doPostBack('<%= MyPanel.ClientID %>', MyParam);

应该解决问题.

顺便说一句，您可以从服务器端获取第二个(代码中的MyParam)参数:

BTW, you could get the second(MyParam in your code) parameter from the server side:

var arg = Request.Params.Get("__EVENTARGUMENT");

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