값은 나오는데
값이 변경돼도 자동으로 안보이넹
우짬

Xaml에선
label text={Binding Count}
코드

BindingContext as PageViewModel;
———
Public class PageViewModel : INotifyPropertyChanged
{
    private int count;

   public int Count
    {
        get => count;
        set
        {
            count = value;
            OnPropertyChanged(nameof(Count));
        }
    }

public event PropertyChangedEventHandler PropertyChanged;

protected void OnPropertyChanged(string propertyName)
  
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}