private void buttonPagesForGroupAdd_Click(object sender, RoutedEventArgs e)
        {
            var selectedgroups = _pagescontrol._acceptablePagesGroups.FirstOrDefault(x => x.Name == ((ListBoxItem)this.listBoxGroups.SelectedItem).Content.ToString());
            var selectedpage   = _pagescontrol._acceptablePages.FirstOrDefault(x => x.Url == ((ListBoxItem)this.listBoxPages.SelectedItem).Content.ToString());

            using (ClientServiceClient client = new ClientServiceClient())
            {
                client.AddAcceptablePageForGroup(selectedpage, selectedgroups);
                _pagescontrol.GenerateactiveGroupPages(client, listBoxPagesForGroup, selectedgroups.AcceptablePagesGroupId);
            }
        }