用户控制VS服务器控件 [英] User control vs Server control
问题描述
我想了解 HTML 和 asp.net 。
看来（请的不的纠正我，如果我错了！）的code我写上我的Web项目我的aspx页面是不是所有的HTML。相反，它们是由一些ASP.Net编译运行code当用户从他们的URL进行HTML请求（所以感谢 RUNAT服务器在编译理解非HTML标记，如＆LT; ASP ）。然后 - 编译器使用此code到动态创建一个HTML页面。例如 - 这个转换一个按钮到输入
It seems (please do correct me if I'm wrong!) that the code I write on my aspx pages on my web project are not all html. Rather, they're a code which is run by some "ASP.Net" compiler when a user makes an html request from their url (So thanks to runat server the "compiler" understands non-html tags such as <asp). Then – the "compiler" uses this code to create an html page on the fly. For example – this converts a Button to an input.
这是真的吗？如果是这样，那么，什么是用户控件？
Is this true? If so, then, what is a user control?
推荐答案
ASP.NET有服务器端控件（如按钮，超链接，GridView的等）。这些都产生可以通过C＃/ VB.NET code来处理服务器端的事件（Button1_OnClick）。
ASP.NET has server side controls (Such as buttons, hyperlinks, gridviews etc). These all generate server side events (Button1_OnClick) which can be handled by C#/VB.NET code.
<asp:Button ID="btnCopyText" runat="server" /> // Calls the server side btnCopyText code
public void btnCopyText_Click(object sender, EventArgs e) {
}
HTML有它自己的这是由客户端浏览器（客户端）。
HTML has it's own controls which are rendered by the client's browser (client side).
<button onclick="copyText()">Copy Text</button> // Calls the copyText() function (Client Side)
在ASP.NET按钮被在服务器端渲染，然后被传递到客户端为标准的HTML按钮（如上图所示）。
The ASP.NET Button gets rendered at the server side and then gets passed down to the client as a standard HTML Button (Shown above).
一个自定义用户控件是由程序员创建ASP.NET服务器端控件，它可以包含多个ASP.NET服务器端控件，如GridView控件和一个按钮）。一个例子是，当点击该按钮时重新加载在GridView中的数据。这对于ASP.NET开发人员提供了一种方法来写一个自定义的控制，并在需要的时候，而不是编写样板code（重复同样的code）重用。
A custom user control is an ASP.NET Server Side control that is created by the programmer, it may contain several ASP.NET Server Side Controls such as a GridView and a button). An example would be, when the button is clicked it reloads the data in the GridView. This provides a way for an ASP.NET developer to write one custom control and reuse it when needed rather than write boilerplate code (repeating the same code).
http://msdn.microsoft.com/en-us/library/ y6wb1a0e.aspx
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