/// <summary> /// Initializes a new instance of the <see cref="Page"/> class. /// </summary> /// <remarks> /// It is not possible to inject view models. /// </remarks> public Page() { if (Catel.Environment.IsInDesignMode) { return; } var viewModelType = GetViewModelType(); if (viewModelType == null) { Log.Debug("GetViewModelType() returned null, using the ViewModelLocator to resolve the view model"); viewModelType = _viewModelLocator.ResolveViewModel(GetType()); if (viewModelType == null) { const string error = "The view model of the view could not be resolved. Use either the GetViewModelType() method or IViewModelLocator"; Log.Error(error); throw new NotSupportedException(error); } } _logic = new NavigationPageLogic(this, viewModelType); _logic.TargetControlPropertyChanged += (sender, e) => { #if !NET // WPF already calls this method automatically OnPropertyChanged(e.FxEventArgs); // Do not call this for WPF, will cause problems with ActualWidth and ActualHeight PropertyChanged.SafeInvoke(this, new PropertyChangedEventArgs(e.PropertyName)); #endif }; _logic.ViewModelChanged += (sender, e) => { OnViewModelChanged(); ViewModelChanged.SafeInvoke(this, e); PropertyChanged.SafeInvoke(this, new PropertyChangedEventArgs("ViewModel")); }; _logic.ViewModelPropertyChanged += (sender, e) => { OnViewModelPropertyChanged(e); ViewModelPropertyChanged.SafeInvoke(this, e); }; _logic.DetermineViewModelInstance += (sender, e) => { e.ViewModel = GetViewModelInstance(e.DataContext); }; _logic.DetermineViewModelType += (sender, e) => { e.ViewModelType = GetViewModelType(e.DataContext); }; ViewModelChanged.SafeInvoke(this); Loaded += (sender, e) => OnLoaded(e); Unloaded += (sender, e) => OnUnloaded(e); }
/// <summary> /// Initializes a new instance of the <see cref="Page"/> class. /// </summary> /// <remarks> /// It is not possible to inject view models. /// </remarks> public Page() { if (Catel.Environment.IsInDesignMode) { return; } var viewModelType = GetViewModelType(); if (viewModelType == null) { Log.Debug("GetViewModelType() returned null, using the ViewModelLocator to resolve the view model"); viewModelType = _viewModelLocator.ResolveViewModel(GetType()); if (viewModelType == null) { const string error = "The view model of the view could not be resolved. Use either the GetViewModelType() method or IViewModelLocator"; Log.Error(error); throw new NotSupportedException(error); } } _logic = new NavigationPageLogic(this, viewModelType); _logic.TargetControlPropertyChanged += (sender, e) => { #if !NET // WPF already calls this method automatically OnPropertyChanged(e.FxEventArgs); PropertyChanged.SafeInvoke(this, new PropertyChangedEventArgs(e.PropertyName)); #else // Do not call this for ActualWidth and ActualHeight WPF, will cause problems with NET 40 // on systems where NET45 is *not* installed if (!string.Equals(e.PropertyName, "ActualWidth", StringComparison.InvariantCulture) && !string.Equals(e.PropertyName, "ActualHeight", StringComparison.InvariantCulture)) { PropertyChanged.SafeInvoke(this, new PropertyChangedEventArgs(e.PropertyName)); } #endif }; _logic.ViewModelChanged += (sender, e) => { OnViewModelChanged(); ViewModelChanged.SafeInvoke(this, e); PropertyChanged.SafeInvoke(this, new PropertyChangedEventArgs("ViewModel")); }; _logic.ViewModelPropertyChanged += (sender, e) => { OnViewModelPropertyChanged(e); ViewModelPropertyChanged.SafeInvoke(this, e); }; _logic.DetermineViewModelInstance += (sender, e) => { e.ViewModel = GetViewModelInstance(e.DataContext); }; _logic.DetermineViewModelType += (sender, e) => { e.ViewModelType = GetViewModelType(e.DataContext); }; ViewModelChanged.SafeInvoke(this); Loaded += (sender, e) => OnLoaded(e); Unloaded += (sender, e) => OnUnloaded(e); }