Daten werden nun geladen

GuiWPF/MainWindowViewModel.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace WPF
+{
+    public class MainWindowViewModel : ViewModelBase
+    {
+        public ICommand LoadHomePageCommand { get; private set; }
+        public ICommand LoadSettingsPageCommand { get; private set;}
+
+        private ViewModelBase _currentViewModel;
+        public ViewModelBase CurrentViewModel
+        {
+            get => _currentViewModel;
+            set
+            {
+                _currentViewModel = value;
+                OnPropertyChanged("CurrentViewModel");
+            }
+        }
+
+        public MainWindowViewModel()
+        {
+            this.LoadHomePage();
+            this.LoadHomePageCommand = new DelegateCommand(o => this.LoadHomePage());
+            this.LoadSettingsPageCommand = new DelegateCommand(o => this.LoadSettingsPage());
+        }
+
+        private void LoadHomePage()
+        {
+            CurrentViewModel = new HomePageViewModel(
+                new HomePage { PageTitle = "This is the Home Page" });
+        }
+
+        private void LoadSettingsPage()
+        {
+            CurrentViewModel = new SettingsPageViewModel(
+                new SettingsPage() { PageTitle = "This is the SettingsPage" });
+        }
+    }
+}