How to use Exception filters in MVC 5

Question

How i can implement Exception Filters in MVC5.

I want to throw the exception to NLog and redirect the page to a default error page which displays \"Something is gone

Answer 1

Below worked for me. A few things to note 1) RedirectResult points to a controller action, not a view 2) you need to set filterContext.ExceptionHandled = true; or your exception view / page will not display.

public class ErrorAttribute : HandleErrorAttribute
{
    public override void OnException(ExceptionContext filterContext)
    {
        Log.Logger.Error(filterContext.Exception, "An Unhandled exeption occured durring the execution of a request");

        filterContext.Result = new RedirectResult("~/MyControler/MyErrorAction");
        filterContext.ExceptionHandled = true;
    }

}

Ofcourse you will also need to register the Error attribute using the GlobalFilters object from your Global.asax as shown below.

 protected void Application_Start()
 {
     GlobalFilters.Filters.Add(new ErrorAttribute());           
     ...
 }