外文翻譯---aspnet介紹以及內(nèi)聯(lián)代碼和共享-jsp程序-文庫吧資料
2025-05-22 11:16本頁面
【正文】 tback to the originating page when a button is clicked: Important: Note that nothing happens yet when you click the Lookup button. This is because the .htm file contains only static HTML (no dynamic content). Thus, the same HTML is sent back to the client on each trip to the page, which results in a loss of the contents of the form fields (the text box and dropdown list) between requests. provides syntax patibility with existing ASP pages. This includes support for % % code render blocks that can be intermixed with HTML content within an .htm file. These code blocks execute in a topdown manner at page render time. The below example demonstrates how % % render blocks can be used to loop over an HTML block (increasing the font size each time): Important: Unlike with ASP, the code used within the above % % blocks is actually pilednot interpreted using a script engine. This results in improved runtime execution performance. page developers can utilize % % code blocks to dynamically modify HTML output much as they can today with ASP. For example, the following sample demonstrates how % % code blocks can be used to interpret results posted back from a client. Important: While % % code blocks provide a powerful way to custom manipulate the text output returned from an page, they do not provide a clean HTML programming model. As the sample above illustrates, developers using only % % code blocks must custom manage page state between round trips and custom interpret posted values. In addition to code and markup, pages can contain server controls, which are programmable serverside objects that typically represent a UI element in the page, such as a textbox or image. Server controls participate in the execution of the page and produce their own markup rendering to the client. The principle advantage of server controls is that they enable developers to get plex rendering and behaviors from simple buildingblock ponents, dramatically reducing the amount of code it takes to produce a dynamic Web page. Another advantage of server controls is that it is easy to customize their rendering or behavior. Server controls expose properties that can be set either declaratively (on the tag) or programmatically (in code). Server controls (and the page itself) also expose events that developers can handle to perform specific actions during the page execution or in response to a clientside action that posts the page back to the server (a postback). Server controls also simplify the problem of retaining state across roundtrips to the server, automatically retaining their values across successive postbacks. Server controls are declared within an .htm file using custom tags or intrinsic HTML tags that contain a runat=server attribute value. Intrinsic HTML tags are handled by one of the controls in the namespace. Any tag that doesn39。附錄 1 英文原文 Introduction to Pages and Inline Code and Share[10] The Web Forms page framework is a scalable mon language runtime programming model that can be used on the server to dynamically generate Web pages. Intended as a logical evolution of ASP ( provides syntax patibility with existing
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