Performing validation asp.net mvc without using models

Question

Hello everyone, How do i do validation in mvc if I'm not using models?

I'm directly obtaining data from the controller and displaying it.

How do I validate ?

Most examples seem to use the model to validate....

Would appreciate any help... Thanks.

Answer 1

Although it is considered to be against MVC paradigm, nothing technically prevents you from working with the posted form directly.

class TestController : Controller
{
    [AcceptVerbs (HttpVerbs.Post)]
    public ActionResult SomeAction (FormCollection form)
    {
        if (MyCustomValidation (form))
            SaveData ();

        RedirectToAction ("SomeAction");
    }
}

Answer 2

You could use a service layer as described by this article, this allows both separation of concerns whilst maintaining error handling, not relying on the controller to do it all for you.

Answer 3

@ New in Town : I think you might want to have [AcceptVerbs(HttpVerbs.post)] in your code :)

class TestController : Controller
{
    [AcceptVerbs (HttpVerbs.Post)]
    public ActionResult SomeAction (FormCollection form)
    {
        if (MyCustomValidation (form))
            SaveData ();

        RedirectToAction ("SomeAction");
    }
}

PS: Sorry I can't comment as my reputation is below 50 points, so I had to post it as a answer.

Thanks, Mahesh Velaga.