private void OnSortClick(object sender, RoutedEventArgs e)
{
var sortButton = sender as Button;
if (sortButton == null)
{
return;
}
MenuFlyout menuFlyout = DialogService.CreateInviteContactsSortMenu(this.ViewModel.AwardClass.Contacts);
if (menuFlyout == null)
{
return;
}
menuFlyout.Placement = FlyoutPlacementMode.Bottom;
menuFlyout.ShowAt(sortButton);
}