ASP.NET MVC Razor, Html.BeginForm, using 语句 [英] ASP.NET MVC Razor, Html.BeginForm, using statement

问题描述

对于 ASP.NET MVC 应用程序，谁能向我解释为什么对 Html.BeginForm 的调用以语句 @using 开头?

For an ASP.NET MVC application, can someone explain to me why calls to Html.BeginForm begin with the statement @using?

示例 -

@using (Html.BeginForm()) {

@using (Html.BeginForm()) {

   //Stuff in the form

}

我认为 @using 语句用于包含命名空间.谢谢！

I thought @using statements are for including namespaces. Thanks!

推荐答案

使用声明 提供了一种方便的语法，可确保正确使用 IDisposable 对象.由于 BeginForm 助手实现了 IDisposable 接口，您可以将 using 关键字与它一起使用.在这种情况下，该方法会在语句的末尾呈现结束 </form> 标记.您也可以使用 BeginForm 而不使用 using 块，但是您需要标记表单的结尾:

Using Statement provides a convenient syntax that ensures the correct use of IDisposableobjects. Since the BeginForm helper implements the IDisposable interface you can use the using keyword with it. In that case, the method renders the closing </form> tag at the end of the statement. You can also use the BeginForm without using block, but then you need to mark the end of the form:

@{ Html.BeginForm(); }
    //Stuff in the form
@{ Html.EndForm(); }

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