Question

我和我的朋友有一个主窗口，有两个网格行，每行应该代表不同的视图。顶视图是我们希望根据您拥有的授权级别进行交换的导航栏，因此能够访问不同的内容。

我们在名为OperatorNavView的另一个名称空间中有一个视图，其代码如下所示

<Grid>
    <StackPanel x:Name="NavBar" Orientation="Horizontal" Height="75" VerticalAlignment="Top" HorizontalAlignment="Stretch" Background="White" Grid.Row="0">
        <Button x:Name="btnTeams" Content="Lag"  Command="{Binding NavigationCommand}" CommandParameter="Team" HorizontalAlignment="Left" Width="77"  VerticalAlignment="Top" Background="#d87900" Height="44" />
        <Button x:Name="btnAchievements" Content="Utmärkelser" Command="{Binding NavigationCommand}" CommandParameter="Achievements" HorizontalAlignment="Left" VerticalAlignment="Top" Width="91" Background="#c20071" Height="44"/>
        <Button x:Name="btnNotifications" Content="Notifikations&#xD;&#xA;inställningar&#xD;&#xA;" Command="{Binding NavigationCommand}" CommandParameter="Notification" HorizontalAlignment="Left" Background="#95b800" VerticalAlignment="Top" Width="83" Height="44"/>
    </StackPanel>

命令的绑定指的是mainwindows viewmodel＆＃34; MainWindowViewModel＆＃34;

我需要将dataconmodel中的datacontext连接到我的视图UserControl。我尝试了各种技术，例如编写代码隐藏

DataContext = new MainWindowViewModel();

这不起作用，我的猜测是因为它是一个新实例并且没有显示更改。

usercontrol上的按钮应显示第二个视图。 MainWindow xaml看起来像这样

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="75" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <Grid Grid.Row="0">
        <ContentControl Content="{Binding CurrentNavBar}" />
        <Button x:Name="button" Command="{Binding AuthorizationCommand}" Content="hej" CommandParameter="Operator" HorizontalAlignment="Left" Margin="26,27,0,0" VerticalAlignment="Top" Width="75"/>
    </Grid>
    <Grid Grid.Row="1">
        <ContentControl Content="{Binding CurrentViewModel}" />

    </Grid>

Answer 1

我在Abhinav Sharma建议的亲属资源约束中找到了答案。我以这种方式将relativesource绑定添加到stackpanel的datacontext：

<StackPanel x:Name="NavBar" Orientation="Horizontal" Height="75" VertcalAlignment="Top" HorizontalAlignment="Stretch" Background="White" 
Grid.Row="0" DataContext="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}, Path=DataContext}" >

将一个视图datacontext绑定到mainwindows datacontext

1 个答案: