Custom AuthorizeAttribute

Question

I have a child class of AuthorizeAttribute named CheckArticleExistence.

I would like to set an attribute using the parameter that I receive in the action. Like this:

Answer 1

This one worked (thanks!):

[CheckArticleExistence]
public ActionResult Tags(int articleId)
{
    ...
}

...

public class CheckArticleExistenceAttribute : AuthorizeAttribute
{
    private int articleId;

    public override void OnAuthorization(AuthorizationContext filterContext)
    {

        this.articleId = int.Parse(filterContext.RouteData.Values["id"].ToString());

        if (!Article.Exists(articleId))
        {
            ...
        }
    }
}