ASP.NET routing with a NOT equal to constraint

Question

I have a route like so:

routes.MapRoute
    (
    "Profile",
    "profile/{username}",
    new { controller = "Profile", action = "Index" },
    new { username = @"^(getmoreactivity)" }
    );

This works fine for all users but I have a situation where I want to hit an action for getmoreactivity. So I want to make this constraint to say when username is NOT getmoreactivity. It's just not working though.

I've stuck on the RouteDebugger and tried @"[^(getmoreactivity)]" @"^^(getmoreactivity)" @"^getmoreactivity" @"[^getmoreactivity]". Well I've tried countless things but none solve my problem.

How the hell do you put in a NOT constraint on a whole word?

Answer 1

try:

routes.MapRoute 
( 
"Profile", 
"profile/{username}", 
new { controller = "Profile", action = "Index" }, 
new { username = "(?!getmoreactivity).*" } 
); 

?! is a lookahead: http://www.regular-expressions.info/refadv.html

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