ASP.NET MVC redirect from attribute

Question

I'm trying to execute a Redirect from a method attribute. It seems to work:

public class MyAttribute: ActionFilterAttribute {
    [..]
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        [..]
        filterContext.HttpContext.Response.Redirect(urlToRedirectTo, true);
        [..]

The only problem is that the redirect is executed after the end of the method it's attached to, while i'd like the redirect to prevent the execution of the method.

Any help? Thanks

Answer 1

You can prevent execution of the action method by assigning an ActionResult to filterContext.Result. For example:

filterContext.Result = new RedirectResult(urlToRedirectTo);