using System; using System.Collections.Generic; using System.ComponentModel; using System.Linq; using System.Runtime.CompilerServices; using System.Text; using System.Threading.Tasks; namespace ProgressBarMVVMSample.Model { internal class BindableBase : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; protected bool SetProperty(ref T storage, T value, [CallerMemberName] string propertyName = null) { if (Equals(storage, value)) return false; storage = value; this.OnPropertyChanged(propertyName); return true; } private void OnPropertyChanged([CallerMemberName] string propertyName = null) { if (this.PropertyChanged == null) return; this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } }