private void ContentFrame_Navigating(object sender, NavigatingCancelEventArgs e) { if (_secureViews.ContainsKey(e.Uri.OriginalString)) { var requiredRole = _secureViews[e.Uri.OriginalString]; if (e.NavigationMode != NavigationMode.Back && !WebContext.Current.User.IsAuthenticated) { ErrorWindow.CreateNew(ApplicationStrings.Main_LoginRequired, StackTracePolicy.Never); e.Cancel = true; } else if (e.NavigationMode != NavigationMode.Back && WebContext.Current.User.IsAuthenticated && !WebContext.Current.User.IsInRole(requiredRole)) { ErrorWindow.CreateNew(ApplicationStrings.Main_RoleRequired + requiredRole, StackTracePolicy.Never); e.Cancel = true; } } }