using Microsoft.Toolkit.Mvvm.Input; using MvvmHelpers; using MvvmHelpers.Commands; namespace MyMoviesWPF.MVVM.ViewModel { public class MainViewModel : BaseViewModel { //UserViewModel _userViewModel = new UserViewModel(); private BaseViewModel _toolbar = new UserViewModel(); private BaseViewModel _view = new CatalogViewModel(); public BaseViewModel CurrentToolbar { get { return _toolbar; } set { _toolbar = value; OnPropertyChanged(); } } public BaseViewModel CurrentView { get { return _view; } set { _view = value; OnPropertyChanged(); } } } }