This is the exact question I typed in google to find the answer. I guess I was too lazy to find it myself. But alas, I didn't find any good links. So I started going through the MVC library myself.
My exact question is that why we need to declare Html.BeginForm with using like below but for other Html extensions we don't.
Well, the answer is actually pretty simple. The BeginForm method render a html form tag. When the method is called it render only the first part of the form.
After that any number of extension methods can be called. So how would the system know when to close the form. And that's why using is used. When system goes out of the using scope, it tries to dispose the enclosing object. This is when the object renders the closing form tag.
This can be verified by going to the declaration of BeginForm. All the BeginForm methods return an object of Type System.Web.Mvc.Html.MvcForm. And MvcForm implements IDisposable interface.
My exact question is that why we need to declare Html.BeginForm with using like below but for other Html extensions we don't.
@using(Html.BeginForm())
{
...
}
Well, the answer is actually pretty simple. The BeginForm method render a html form tag. When the method is called it render only the first part of the form.
<form action=""...>
After that any number of extension methods can be called. So how would the system know when to close the form. And that's why using is used. When system goes out of the using scope, it tries to dispose the enclosing object. This is when the object renders the closing form tag.
This can be verified by going to the declaration of BeginForm. All the BeginForm methods return an object of Type System.Web.Mvc.Html.MvcForm. And MvcForm implements IDisposable interface.
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