SewerGenerator/SewerStammGen/ViewModel/MainWindowViewModel.cs

using SewerStammGen.Commands;
using SewerStammGen.Enum;
using SewerStammGen.Interface;
using SewerStammGen.Interface.Navigator;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;

namespace SewerStammGen.ViewModel
{
    public class MainWindowViewModel : BaseViewModel
    {
        public IMainWindowNavigator Navigator { get; set; }
        public BaseViewModel CurrentViewModel => Navigator.CurrentViewModel;

        public ICommand UpdateCurrentViewModelCommand { get; }

        public static string ApplicationTitle
        {
            get => "Stammdatengenerator Version 0.1";
        }

        public MainWindowViewModel(
            IMainWindowNavigator navigator,
            IViewModelAbstractFactory viewModelFactory
            
            )
        {
            Navigator = navigator;

            UpdateCurrentViewModelCommand = new UpdateCurrentViewModelCommand(navigator, viewModelFactory);
            UpdateCurrentViewModelCommand.Execute(EMainWindowViewType.Home);



            Navigator.StateChanged += Navigator_StateChanged;
        }

        private void Navigator_StateChanged()
        {
            OnPropertyChanged(nameof(CurrentViewModel));
        }
    }
}