public GuardsViewModel()
{
Title = "Browse";
Guards = new ObservableCollection <Guard>();
LoadGuardsCommand = new Command(async() => await ExecuteLoadGuardsCommand());
MessagingCenter.Subscribe <NewGuardPage, Guard>(this, "AddGuard", async(obj, guard) =>
{
var _guard = guard as Guard;
Guards.Add(_guard);
await GuardDataStore.AddMemberAsync(_guard);
});
}
