async Task ExecuteLoadContacts()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
Contacts.Clear();
var items = await DataStoreContact.GetItemsAsync(true);
foreach (var item in items)
{
Contacts.Add(item);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
public ContactsViewModel()
{
Title = "My Contacts";
Contacts = new ObservableCollection <Contact>();
LoadContactsCommand = new Command(async() => {
await ExecuteLoadContacts();
});
MessagingCenter.Subscribe <NewContactPage, Contact>(this, "AddContact", async(obj, contact) =>
{
var newContact = contact as Contact;
Contacts.Add(newContact);
await DataStoreContact.AddItemAsync(newContact);
});
}
