Setting exception handled in Web API ExceptionFilterAttribute

Question

Is there any way in ASP.NET Web API to mark an exception as handled in an ExceptionFilterAttribute?

I want to handle the exception at the method level with an exception filter and stop the propagation to a globally registered exception filter.

Filter used on a controller action:

public class MethodExceptionFilterAttribute : ExceptionFilterAttribute
{
    public override void OnException(HttpActionExecutedContext context)
    {
        if (context.Exception is NotImplementedException)
        {
            context.Response = new HttpResponseMessage(HttpStatusCode.InternalServerError)
            {
                Content = new StringContent(context.Exception.Message)
            };
            // here in MVC you could set context.ExceptionHandled = true;
        }
    }
}

The globally registered filter:

public class GlobalExceptionFilterAttribute : ExceptionFilterAttribute
{
    public override void OnException(HttpActionExecutedContext context)
    {
        if (context.Exception is SomeOtherException)
        {
            context.Response = new HttpResponseMessage(HttpStatusCode.SomethingElse)
            {
                Content = new StringContent(context.Exception.Message)
            };
        }
    }
}

Answer 1

Try throwing an HttpResponseException at the end of your local handling. By design, they are not caught by exception filters.

throw new HttpResponseException(context.Response);