PsmFramework.Engines.DrawEngine2d.TiledTextures.TiledTextureManager.RemoveUser C# (CSharp) Méthode

        internal void RemoveUser(String key, DrawableBase user)
        {
            if(String.IsNullOrWhiteSpace(key))
                throw new ArgumentNullException();

            if(user == null)
                throw new ArgumentNullException();

            if(!Users.ContainsKey(key))
                throw new ArgumentException("Attempt to remove a user from an unknown key.");

            if(Users[key] == null)
                throw new ArgumentException("Attempt to remove an unknown user.");

            if(!Users[key].Contains(user))
                throw new ArgumentException("Attempt to remove an unknown user.");

            Users[key].Remove(user);

            //Let the cache policy decide what to do.
            ApplyCachePolicyForRemovalOfUser(key);
        }