The client's onload event handler is invoked when the CM provider sets the IFrame SRC to the return URL.
当CM提供者设置IF ramesrc以返回url时，客户的onload事件处理器得到激活。
You can use the onload event handler to test that specific fields (on which the update panel depends) are populated.
您可以使用onload事件处理程序测试该特定字段（更新面板所依赖的字段）是否已填充。
In the Listing 5, the DOM is used to lodge an onload event handler which fires the initialize function once the XUL page is fully received.
在清单5中，DOM用来存放一个装载事件处理程序，当XUL页面完全接收时，这个事件激活initialize函数。
The first block contains the event handler to initialize the application (onload) and the initialization of the database, as shown in Listing 3.
第一段包含初始化应用程序的事件处理函数(onload)和数据库初始化，如清单3所示。
When the page is first loaded (onLoad event), the request handler is registered with the Ajax engine.
第一次加载此页面时(onLoad event)，请求处理程序使用Ajax引擎进行注册。
When the page is first loaded (onLoad event), the request handler is registered with the Ajax engine.
第一次加载此页面时(onLoad event)，请求处理程序使用Ajax引擎进行注册。
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