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在WPF的Page中的导航

首先在Page页中加一个<Hyperlink>的标签,再添中一个Click事件,指向后台处理程序。如下:

<Hyperlink Click="hyperlink_Click">你好</Hyperlink>

在.cs文件中,需要引入 using System.Windows.Navigation命名空间   

然后处理事件,也就是主体了。     

void hyperlink_Click(object sender, RoutedEventArgs args)  

{

}

有四种方法(事例中是由当前页向Page4导航),如下:

1、

           Page4 page = new Page4();

            NavigationService ns = NavigationService.GetNavigationService(this);

            ns.Navigate(page);

2、

            NavigationService ns = NavigationService.GetNavigationService(this);

            ns.Source = new Uri("Page4.xaml", UriKind.Relative);

3、

           NavigationService ns = NavigationService.GetNavigationService(this);

            ns.Content = new Page4();

4、

            Page4 page = new Page4();

            this.NavigationService.Navigate(page);

   5、     this.NavigationService.Refresh();//导航到本页

如果想缓存浏览过的页面可以在Page头中设置:

<Page

    x:Class="BrowserApp"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    WindowTitle="Page3"

    KeepAlive="True">     

</Page>

如果想减少内存的开销,可以使用这个方法(注意文中黑体字):

public static readonly DependencyProperty RetainedStateDP;

   using System;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Navigation;

public partial class RetainedStateDPPage : System.Windows.Controls.Page

{

    public static readonly DependencyProperty RetainedStateDP;

    static RetainedStateDPPage()

    {

        RetainedStateDPPage.RetainedStateDP =

            DependencyProperty.Register(

                "RetainedState",

                typeof(string),

                typeof(RetainedStateDPPage),

                new FrameworkPropertyMetadata(

                    null,

                    FrameworkPropertyMetadataOptions.Journal));

    }

   public RetainedStateDPPage()

    {

        InitializeComponent();

    }

    public string RetainedState

    {

        get

        {

            return (string)base.GetValue(RetainedStateDPPage.RetainedStateDP);

        }

        set

        {

            base.SetValue(RetainedStateDPPage.RetainedStateDP, value);

        }

    }

}