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beginRequest

beginRequest

使用PageRequestManager客户端事件... ... initializeRequest【初始化请求】 beginRequest【 开始请求】 pageLoading【页面 …

一般而言，重新撰写 URL 包括了在应用程式要求 (例如 BeginRequest) 生命周期初期时，变更要求的 URL。如果要重新撰写 U…

In the beginRequest event handler the postBackElement property is used to access the name of the element that caused the postback .

The module is called in response to two events: the BeginRequest event and the EndRequest event .

Used by the beginRequest event of the Sys. WebForms. PageRequestManager class to pass argument information to event handlers.

The BeginRequest and EndRequest events are only two of the events that occur during page processing .

In the beginRequest event handler , display the DOM element that represents the UpdateProgress control .