private async void AppBarButtonEditPersonGroup_Click(object sender, RoutedEventArgs e)
        {
            if (null != personGroupListView.SelectedItem && !((PersonGroups)personGroupListView.SelectedItem).name.Equals("..."))
            {
                this.IsEnabled = false;
                personGroupProgressRing.IsActive = true;

                string response = await PersonGroupCmds.UpdatePersonGroups(globals.gPersonGroupSelected.personGroupId,
                                                                           txtPersonGroup.Text,
                                                                           txtPersonGroupContext.Text);

                personGroupProgressRing.IsActive = false;
                this.IsEnabled = true;
            }
            else
            {
                MessageDialog dialog = new MessageDialog("Select an existing person group and change name", "Update Error");
                await dialog.ShowAsync();
            }

            AppBarButtonPersonGroupRefresh_Click(null, null);
        }