using System; using System.Collections.Generic; using System.ComponentModel; using System.Runtime.CompilerServices; using System.Text; namespace ReceiptPDFBuilder.Helpers { // https://docs.microsoft.com/en-us/dotnet/api/system.componentmodel.inotifypropertychanged?view=netframework-4.7.2 class ChangeNotifier : INotifyPropertyChanged { public event PropertyChangedEventHandler? PropertyChanged; protected void NotifyPropertyChanged([CallerMemberName] string propertyName = "") { PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); } } }