public NewItemPage(PhonesBook item)
{
InitializeComponent();
NewItemViewModel vm = new NewItemViewModel(item);
BindingContext = vm;
}
public async void RemovePhone(PhonesBook item)
{
if (!await _dataStore.DeleteItemAsync(item))
{
return;
}
Collection.Remove(item);
OnCollectionChanged(NotifyCollectionChangedAction.Remove, item);
}
public async void AddPhone(PhonesBook item)
{
if (!await _dataStore.AddItemAsync(item))
{
return;
}
Collection.Add(item);
OnCollectionChanged(NotifyCollectionChangedAction.Add, item);
}
public void DeleteAt(int index)
{
if (index >= 0)
{
PhonesBook.RemoveAt(index);
}
else
{
throw new Exception("No have this client in phone book ");
}
}
public async void EditPhone(PhonesBook item)
{
if (!await _dataStore.UpdateItemAsync(item))
{
return;
}
PhonesBook element = Collection.Find(el => el.Id == item.Id);
Collection.Remove(element);
OnCollectionChanged(NotifyCollectionChangedAction.Remove, element);
Collection.Add(item);
OnCollectionChanged(NotifyCollectionChangedAction.Add, item);
}
public NewItemViewModel(PhonesBook item)
{
_collection = PhonesCollection.GetPhonesCollection;
Save = new Command(ExecuteSave);
PhonesBook phone = new PhonesBook
{
Id = item.Id,
Name = item.Name,
Surname = item.Surname,
Phone = item.Phone
};
Item = phone;
}
public void Delete(Client client)
{
PhonesBook.Remove(client);
}
public void Add(Client client)
{
PhonesBook.Add(client);
Count++;
}
protected void OnCollectionChanged(NotifyCollectionChangedAction action, PhonesBook item)
{
CollectionChanged?.Invoke(this, new NotifyCollectionChangedEventArgs(action, item));
}
public NewItemViewModel()
{
_collection = PhonesCollection.GetPhonesCollection;
Save = new Command(ExecuteSave);
Item = new PhonesBook();
}