无法使用棱镜导航

问题描述

我无法在 Prism 中使用导航.当我点击按钮转到相应的视图时，什么也没有发生.

I can't get the navigation in Prism to work. When I click on the buttons to go to respective views, nothing happens.

这是 Man View (Shell) XAML:

This is the Man View (Shell) XAML:

<Window x:Class="MVVMPractice2.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:prism="http://prismlibrary.com/"
        prism:ViewModelLocator.AutoWireViewModel="True"
        xmlns:Views="clr-namespace:MVVMPractice2.Views"
        Title="MainWindow" Height="350" Width="525">

        <Grid>
            <Button Margin="108,130,331.4,152.8" Content="View A" Command="{Binding NavigateCommand}" CommandParameter="ViewA"/>
            <Button Margin="254,130,185.4,152.8" Content="View B" Command="{Binding NavigateCommand}" CommandParameter="ViewB"/>

            <ContentControl prism:RegionManager.RegionName="ContentRegion"/> <!--PRISM POWER-->
        </Grid>
</Window>

及其视图模型:

public class MainWindowViewModel : BindableBase
{
    private readonly IRegionManager regionManager; //PRISM POWER

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

    public MainWindowViewModel(IRegionManager regionManager)
    {
        this.regionManager = regionManager;
        NavigateCommand = new DelegateCommand<string>(Navigate);
    }

    private void Navigate(string uri)
    {
        regionManager.RequestNavigate("ContentRegion", uri);
    }
}

和引导程序:

public class Bootstrapper : UnityBootstrapper
{
    protected override DependencyObject CreateShell()
    {
        return Container.Resolve<MainWindow>();
    }

    protected override void InitializeShell()
    {
        Application.Current.MainWindow.Show();
    }

    protected override void ConfigureContainer()
    {
        base.ConfigureContainer();

        Container.RegisterType(typeof(object), typeof(ViewA), "ViewA");
        Container.RegisterType(typeof(object), typeof(ViewB), "ViewB");

        Container.RegisterType<ICustomer, Customer>();
    }
}

我希望得到一些帮助.

推荐答案

我只在 UserControls 上使用 prism:ViewModelLocator.AutoWireViewModel="True" 而不是在窗口上使用我的工作.我假设您使用的是棱镜 6.

I got mine to work by using the prism:ViewModelLocator.AutoWireViewModel="True" on UserControls only and not the window. I am assuming that you are using prism 6.

所以我所做的是，我首先创建了 MainWindow 它将容纳我所有的 UserControls，然后我创建了一个 MainUserControl将容纳所有其他用户控件.我在这篇博客文章(http://brianlagunas.com/getting-started-prisms-new-viewmodellocator/).请记住创建您的 MVVM 文件夹(View 和 ViewModel)文件夹，其中包含各自的内容作为博客亮点.

So what I did is, I first created the MainWindow that is going to house all my UserControls, I then created a MainUserControl that would house all the other UserControls. All this I achieved following this blog post (http://brianlagunas.com/getting-started-prisms-new-viewmodellocator/). Remember to create your MVVM folders (View and ViewModel) folders with their respective contents as the blog highlights.

希望这会有所帮助.

这篇关于无法使用棱镜导航的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！