CODEWITHSUNDEEP
c#asp.net-mvcasp.net-mvc-4
Arseni Mourzenko
Arseni Mourzenko

Reputation: 52311

How HttpNotFound is implemented and how to create similar methods for other errors?

In ASP.NET MVC, Controller class has only a limited set of methods to use to return something from an action.

There is a HttpNotFoundResult HttpNotFound() method, but no other methods for errors.

What's really inside HttpNotFound()? How to write a similar method for other error codes, like 401 Unauthorized or 403 Forbidden or 406 Not Acceptable?

Upvotes: 0

Views: 1268

Answers (1)

Sergey Berezovskiy
Sergey Berezovskiy

Reputation: 236208

It is implemented this way:

public class HttpNotFoundResult : HttpStatusCodeResult
{
    public HttpNotFoundResult() : this(null)
    {
    }

    public HttpNotFoundResult(string statusDescription) : 
           base(HttpStatusCode.NotFound, statusDescription)
    {
    }
}

When executed, HttpStatusCodeResult simply sets status code and status description to context.HttpContext.Response. You can inherit from HttpStatusCodeResult class and create your own results. E.g.

public class HttpUnauthorizedResult : HttpStatusCodeResult
{
    public HttpUnauthorizedResult() : this(null)
    {
    }

    public HttpUnauthorizedResult(string statusDescription) : 
           base(HttpStatusCode.Unauthorized, statusDescription)
    {
    }
}

Upvotes: 2

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