我们可以用多种形式的网页？ [英] Can we use multiple forms in a web page?

问题描述

到目前为止，所有的网页，我遇到最多包含一个＆LT;形式为GT; 标记。为什么不能多的人？我想不出原因多种形式不能在同一网页中共存。

So far, all the web pages I met contain at most one <form> tag. Why not multiple ones? I can not think of reasons why multiple forms can't coexist within the same web page.

此外，具体到ASP.NET - 为什么所有的服务器控件都放在＆LT内;形式＆GT; 标记？为什么不把它们别的地方？

Also, to be specific to ASP.NET - why are all the server controls are placed within the <form> tag? Why not place them somewhere else?

另外，

我注意到，在的.aspx 文件中的＆LT;形式＆GT; 标签的 RUNAT =服务器的属性，而普通的服务器控件，如按钮也有一个。因此，似乎在＆LT;形式为GT; 也有服务器控件。但奇怪的是，我无法找到它的Visual Studio工具箱。

I noticed that in an .aspx file, the <form> tag has the runat=server attribute, while a normal server control such as Button also has one. So it seems the <form> is also a server control. But strangely enough, I cannot find it in the Visual Studio Toolbox.

推荐答案

有可能是多种形式，<一个href=\"http://www.frederikvig.com/2009/06/using-multiple-forms-on-an-asp-net-web-forms-page/\">with <一href=\"http://stackoverflow.com/questions/91350/multiple-forms-on-asp-net-page/91374#91374\">hacks.

There can be multiple forms, with hacks.

这的确是一个缺点的WebForms的。在ASP.NET MVC，只要你想，你可以实现尽可能多的形式（它是有效的和放大器;网页的正确的行为）。

It is indeed a shortcoming of WebForms. In ASP.NET MVC you can implement as many forms as you want (and it is valid & correct behavior of web pages).

原因所有的服务器控件都放在里面的＆LT;形式为GT; 标签是允许的WebForms引擎识别它们，载入他们的价值观和放大器;自/至ViewState中保存其值。几乎所有的基础设施的WebForms控制管理是基于标签包含您从code-后面访问一切的想法。

The reason all server controls are placed inside <form> tag is to allow the WebForms engine to recognize them, load their values & save their values from/to the ViewState. Almost all infrastructure of control management in WebForms is based on the idea that a tag contains everything you access from the code-behind.

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