以及下面的onchange服务器端事件。

And the following onchange server-side event.

youdao

当用户在菜单项上点击时，页面回传并引发服务器端事件。

When the user clicks on any of the menu's menu items, the page posts back and raises a server-side event.

youdao

这种机制可以将服务器端事件“推入”到客户机。

This is a mechanism by which server-side events are "pushed" to the client.

youdao