优化更新代码，添加界面功能并整合

WPFluent/Controls/NavigationView/NavigationView.Events.cs

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+
+
+
+// Based on Windows UI Library
+// Copyright(c) Microsoft Corporation.All rights reserved.
+
+// ReSharper disable once CheckNamespace
+namespace WPFluent.Controls;
+
+/// <content>
+/// Defines events for <see cref="NavigationView"/>.
+/// </content>
+public partial class NavigationView
+{
+    /// <summary>
+    /// Identifies the <see cref="BackRequested"/> routed event.
+    /// </summary>
+    public static readonly RoutedEvent BackRequestedEvent = EventManager.RegisterRoutedEvent(
+        nameof(BackRequested),
+        RoutingStrategy.Bubble,
+        typeof(TypedEventHandler<NavigationView, RoutedEventArgs>),
+        typeof(NavigationView));
+
+    /// <summary>
+    /// Identifies the <see cref="ItemInvoked"/> routed event.
+    /// </summary>
+    public static readonly RoutedEvent ItemInvokedEvent = EventManager.RegisterRoutedEvent(
+        nameof(ItemInvoked),
+        RoutingStrategy.Bubble,
+        typeof(TypedEventHandler<NavigationView, RoutedEventArgs>),
+        typeof(NavigationView));
+
+    /// <summary>
+    /// Identifies the <see cref="Navigated"/> routed event.
+    /// </summary>
+    public static readonly RoutedEvent NavigatedEvent = EventManager.RegisterRoutedEvent(
+        nameof(Navigated),
+        RoutingStrategy.Bubble,
+        typeof(TypedEventHandler<NavigationView, NavigatedEventArgs>),
+        typeof(NavigationView));
+
+    /// <summary>
+    /// Identifies the <see cref="Navigating"/> routed event.
+    /// </summary>
+    public static readonly RoutedEvent NavigatingEvent = EventManager.RegisterRoutedEvent(
+        nameof(Navigating),
+        RoutingStrategy.Bubble,
+        typeof(TypedEventHandler<NavigationView, NavigatingCancelEventArgs>),
+        typeof(NavigationView));
+
+    /// <summary>
+    /// Identifies the <see cref="PaneClosed"/> routed event.
+    /// </summary>
+    public static readonly RoutedEvent PaneClosedEvent = EventManager.RegisterRoutedEvent(
+        nameof(PaneClosed),
+        RoutingStrategy.Bubble,
+        typeof(TypedEventHandler<NavigationView, RoutedEventArgs>),
+        typeof(NavigationView));
+    /// <summary>
+    /// Identifies the <see cref="PaneOpened"/> routed event.
+    /// </summary>
+    public static readonly RoutedEvent PaneOpenedEvent = EventManager.RegisterRoutedEvent(
+        nameof(PaneOpened),
+        RoutingStrategy.Bubble,
+        typeof(TypedEventHandler<NavigationView, RoutedEventArgs>),
+        typeof(NavigationView));
+
+    /// <summary>
+    /// Identifies the <see cref="SelectionChanged"/> routed event.
+    /// </summary>
+    public static readonly RoutedEvent SelectionChangedEvent = EventManager.RegisterRoutedEvent(
+        nameof(SelectionChanged),
+        RoutingStrategy.Bubble,
+        typeof(TypedEventHandler<NavigationView, RoutedEventArgs>),
+        typeof(NavigationView));
+
+    /// <inheritdoc/>
+    public event TypedEventHandler<NavigationView, RoutedEventArgs> BackRequested
+    {
+        add => AddHandler(BackRequestedEvent, value);
+        remove => RemoveHandler(BackRequestedEvent, value);
+    }
+
+    /// <inheritdoc/>
+    public event TypedEventHandler<NavigationView, RoutedEventArgs> ItemInvoked
+    {
+        add => AddHandler(ItemInvokedEvent, value);
+        remove => RemoveHandler(ItemInvokedEvent, value);
+    }
+
+    /// <inheritdoc/>
+    public event TypedEventHandler<NavigationView, NavigatedEventArgs> Navigated
+    {
+        add => AddHandler(NavigatedEvent, value);
+        remove => RemoveHandler(NavigatedEvent, value);
+    }
+
+    /// <inheritdoc/>
+    public event TypedEventHandler<NavigationView, NavigatingCancelEventArgs> Navigating
+    {
+        add => AddHandler(NavigatingEvent, value);
+        remove => RemoveHandler(NavigatingEvent, value);
+    }
+
+    /// <inheritdoc/>
+    public event TypedEventHandler<NavigationView, RoutedEventArgs> PaneClosed
+    {
+        add => AddHandler(PaneClosedEvent, value);
+        remove => RemoveHandler(PaneClosedEvent, value);
+    }
+
+    /// <inheritdoc/>
+    public event TypedEventHandler<NavigationView, RoutedEventArgs> PaneOpened
+    {
+        add => AddHandler(PaneOpenedEvent, value);
+        remove => RemoveHandler(PaneOpenedEvent, value);
+    }
+
+    /// <inheritdoc/>
+    public event TypedEventHandler<NavigationView, RoutedEventArgs> SelectionChanged
+    {
+        add => AddHandler(SelectionChangedEvent, value);
+        remove => RemoveHandler(SelectionChangedEvent, value);
+    }
+
+    /// <summary>
+    /// Raises the back requested event.
+    /// </summary>
+    protected virtual void OnBackRequested() { RaiseEvent(new RoutedEventArgs(BackRequestedEvent)); }
+
+    /// <summary>
+    /// Raises the item invoked event.
+    /// </summary>
+    protected virtual void OnItemInvoked() { RaiseEvent(new RoutedEventArgs(ItemInvokedEvent, this)); }
+
+    /// <summary>
+    /// Raises the navigated requested event.
+    /// </summary>
+    protected virtual void OnNavigated(object page)
+    {
+        var eventArgs = new NavigatedEventArgs(NavigatedEvent, this) { Page = page };
+
+        RaiseEvent(eventArgs);
+    }
+
+    /// <summary>
+    /// Raises the navigating requested event.
+    /// </summary>
+    protected virtual bool OnNavigating(object sourcePage)
+    {
+        var eventArgs = new NavigatingCancelEventArgs(NavigatingEvent, this) { Page = sourcePage };
+
+        RaiseEvent(eventArgs);
+
+        return eventArgs.Cancel;
+    }
+
+    /// <summary>
+    /// Raises the pane closed event.
+    /// </summary>
+    protected virtual void OnPaneClosed() { RaiseEvent(new RoutedEventArgs(PaneClosedEvent, this)); }
+
+    /// <summary>
+    /// Raises the pane opened event.
+    /// </summary>
+    protected virtual void OnPaneOpened() { RaiseEvent(new RoutedEventArgs(PaneOpenedEvent, this)); }
+
+    /// <summary>
+    /// Raises the selection changed event.
+    /// </summary>
+    protected virtual void OnSelectionChanged() { RaiseEvent(new RoutedEventArgs(SelectionChangedEvent, this)); }
+}