ASP.NET MVC Razor, Html.BeginForm, using statement

Question

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

Example -

Answer 1

using as a statements are used to define scope of IDisposable object.

@using (var form = Html.BeginForm()) {
    //Stuff in the form

} // here Dispose on form is invoked.

Html.BeginForm return object that during dispose render closing tag for a form:

using for including namespace is directive.