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c#asp.net-mvcvalidationcontrollerasp.net-web-api
tom
tom

Reputation: 1822

Validation Filters for specific controllers

In a Web API or ASP.NET MVC application I can add a Global validation filter by doing - 

  GlobalConfiguration.Configuration.Filters.Add(new ModelValidationFilterAttribute());

and 

public class ModelValidationFilterAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(HttpActionContext actionContext)
    {
        if (actionContext.ModelState.IsValid == false)
        {
            actionContext.Response = actionContext.Request.CreateErrorResponse(HttpStatusCode.BadRequest, actionContext.ModelState);
        }
    } 
}

But I want to have many validations filters that apply to controllers of my choice?

Upvotes: 0

Views: 2383

Answers (1)

Brian S
Brian S

Reputation: 5785

Filters are attributes that can be applied to your controllers or specific methods/actions in your controllers.

To use your filter on a case-by-case basis, you can do either of the following:

[MyFilter]
public class HomeController : Controller
{
    //Filter will be applied to all methods in this controller
}

Or:

public class HomeController : Controller
{
    [MyFilter]
    public ViewResult Index()
    {
         //Filter will be applied to this specific action method
    }
}

This tutorial describes filters in detail and provides examples of both scenarios.

Upvotes: 2

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