Initialization

public override void OnAuthentication()
        {
            this.Model.Data["topMenu"] = this.User.IsAuthenticated ?
                @"<li class=""nav-item active col-md-3"">
                    <a class=""nav-link h5"" href=""/"">Home</a>
                </li>
                <li class=""nav-item active col-md-3"">
                    <a class=""nav-link h5"" href=""/users/profile"">Profile</a>
                </li>
                <li class=""nav-item active col-md-3"">
                    <a class=""nav-link h5"" href=""/tubes/upload"">Upload</a>
                </li>
                <li class=""nav-item active col-md-3"">
                    <a class=""nav-link h5"" href=""/users/logout"">Logout</a>
                </li>"
                :
                @"<li class=""nav-item active col-md-4"">
                    <a class=""nav-link h5"" href=""/"">Home</a>
                </li>
                <li class=""nav-item active col-md-4"">
                    <a class=""nav-link h5"" href=""/users/login"">Login</a>
                </li>
                <li class=""nav-item active col-md-4"">
                    <a class=""nav-link h5"" href=""/users/register"">Register</a>
                </li>";

            if (this.User.IsAuthenticated)
            {
                this.DbUser = this.Context.Users
                    .FirstOrDefault(u => u.Username == this.User.Name);
            }

            base.OnAuthentication();
        }