Prism_区域

MainView.xaml

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="30" />
        <RowDefinition />
    </Grid.RowDefinitions>
    <StackPanel Orientation="Horizontal">
        <Button
            Width="80"
            Command="{Binding ShowContentCmm}"
            CommandParameter="A"
            Content="区域A" />
        <Button
            Width="80"
            Command="{Binding ShowContentCmm}"
            CommandParameter="B"
            Content="区域B" />
        <Button
            Width="80"
            Command="{Binding ShowContentCmm}"
            CommandParameter="C"
            Content="区域C" />
    </StackPanel>
    <ContentControl Grid.Row="1" prism:RegionManager.RegionName="ContentRegion" />
</Grid>

 

构造函数通过 IRegionManager 找到视图中可用的区域（prism:RegionManager.RegionName="ContentRegion"）。

MainViewModel.cs

 /// <summary>
 /// 区域管理
 /// </summary>
 public readonly IRegionManager RegionManager;


 public DelegateCommand<string> ShowContentCmm { get; set; }

 public MainWindowViewModel(IRegionManager regionManager)
 {
     RegionManager = regionManager;
     ShowContentCmm = new DelegateCommand<string>(ShowContentFun);
 }

 /// <summary>
 /// 改变显示用户控件
 /// </summary>
 /// <param name="ViewName"></param>
 private void ShowContentFun(string ViewName)
 {
     RegionManager.Regions["ContentRegion"].RequestNavigate(ViewName);
 }

 

在App中完成区域视图的注册

App.xaml.cs

 public partial class App : PrismApplication
 {
     /// <summary>
     /// 设置启动页
     /// </summary>
     /// <returns></returns>
     /// <exception cref="NotImplementedException"></exception>
     protected override Window CreateShell()
     {
         return Container.Resolve<MainWindow>();
     }

     /// <summary>
     /// 注入服务
     /// </summary>
     /// <param name="containerRegistry"></param>
     /// <exception cref="NotImplementedException"></exception>
     protected override void RegisterTypes(IContainerRegistry containerRegistry) {
         containerRegistry.RegisterForNavigation<UCA>("A");
         containerRegistry.RegisterForNavigation<UCB>("B");
         containerRegistry.RegisterForNavigation<UCC>("C");
     }
 }