using System.ComponentModel; using System.Runtime.CompilerServices; namespace TV_Player.MAUI { public abstract class ObservableViewModelBase : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; protected void RaisePropertyChanged(string propertyName) => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); /// /// Set a property and raise a property changed event if it has changed /// protected bool SetProperty(ref T property, T value, [CallerMemberName] string propertyName = null) { if (EqualityComparer.Default.Equals(property, value)) { return false; } property = value; RaisePropertyChanged(propertyName); return true; } } }