Auth.OnlyAdminAllowed C# (CSharp) Method

    public static void OnlyAdminAllowed()
    {
        string AdminGroup = ConfigurationManager.AppSettings["AdminGroup"];
        if (!HttpContext.Current.User.IsInRole(AdminGroup)) {
          HttpContext.Current.Response.Redirect("denied.aspx");
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        Auth.OnlyAdminAllowed();

        urlpath = Util.PathFromUrl;

        if (!IsPostBack)
        {
            Wiki.Page page = DbServices.FindPageByUrlpath(urlpath);
            litHeader.Text       = page.path;
            txtPath.Text         = page.path;
            txtRichEditor.Text   = page.contents;
            hlCancel.NavigateUrl = "./?" + urlpath;

            // If it's the home page, don't allow them to change the path or remove it
            if (urlpath == "/")
            {
                txtPath.Enabled  = false;
                bnDelete.Enabled = false;
            }
        }
    }