Question

我是WPF的新手，正在尝试进行基本导航：我在MainWindow.xaml中使用和

<Window x:Class="TRPZ.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:TRPZ"
        xmlns:viewmodels="clr-namespace:TRPZ.ViewModels"
        xmlns:views="clr-namespace:TRPZ.Views"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.Resources>
        <DataTemplate x:Name="authorTemplate" DataType="{x:Type viewmodels:AuthorViewModel}">
            <views:Author DataContext="{Binding}"/>
        </DataTemplate>
        <DataTemplate x:Name="blogTemplate" DataType="{x:Type viewmodels:BlogViewModel}">
            <views:Blog DataContext="{Binding}"/>
        </DataTemplate>
        <DataTemplate x:Name="postTemplate" DataType="{x:Type viewmodels:PostViewModel}">
            <views:Post DataContext="{Binding}"/>
        </DataTemplate>
    </Window.Resources>
    <Grid>
        <Label Content="Vlad Symonenko" HorizontalAlignment="Left" Margin="139,54,0,0" VerticalAlignment="Top"/>
        <ListBox HorizontalAlignment="Left" Height="100" Margin="123,167,0,0" VerticalAlignment="Top" Width="100" SelectionChanged="ListBox_SelectionChanged"/>
        <Button Content="Blog" HorizontalAlignment="Left" Margin="157,100,0,0" VerticalAlignment="Top" Width="75" Click="AuthorView_Clicked"/>
        <ContentControl Content="{Binding}" />
    </Grid> 
</Window>

借助按钮（点击事件），我可以像

一样更改视图

        private void AuthorView_Clicked(object sender, RoutedEventArgs e)
        {
            DataContext = new AuthorViewModel();
        }

当我看到AuthorViewModel时，我无法再使用相同的逻辑深入了解1级杠杆：

     private void PostButton_Clicked(object sender, RoutedEventArgs e)
        {
            DataContext = new PostViewModel();
        }

单击按钮后，没有任何反应。那我该怎么办呢？

如何导航到下一页？

0 个答案: