using System; using System.Collections.Generic; using System.Text; namespace GuiWPF_ViewModel { public class ViewModelBase : NotificationObject { private bool valIsBusy; private string valBusyMessage; public bool IsBusy { get => valIsBusy; set { if(valIsBusy != value) { valIsBusy = value; OnPropertyChanged(); } } } public string BusyMessage { get => valBusyMessage; set { if(valBusyMessage != value) { valBusyMessage = value; OnPropertyChanged(); } } } } }