Prism框架下的登录窗口跳转

Prism框架下的登录窗口跳转思路是，先注册MainWindow，然后将LoginWindow作为主窗口运行，登录完成后在LoginWindow中使用容器切换窗口为MainWindow并显示，最后关闭LoginWindow即可。

需要注意的是，如果想要在MainWindow中通过区域名称(RegionManager.RegionName)来进行控件注入，那么需要在切换窗口时设置MainWindow的RegionManager，而RegionManager可以通过LoginWindow注入获取(IRegionManager)。

1、App.xaml.cs

public partial class App : PrismApplication
{
    protected override Window CreateShell()
    {
        return Container.Resolve<LoginWindow>();
    }

    protected override void RegisterTypes(IContainerRegistry containerRegistry)
    {
        containerRegistry.Register(typeof(object), typeof(MainWindow));
    }
}

2、LoginWindow.xaml.cs

public partial class LoginWindow : Window
{
    private readonly IContainerExtension _container;
    private readonly IRegionManager _regionManager;

    public LoginWindow(IContainerExtension container, IRegionManager regionManager)
    {
        InitializeComponent();

        _container = container;
        _regionManager = regionManager;

        if (!DesignerProperties.GetIsInDesignMode(this))
        {
            var viewModel = new LoginWindowViewModel();
            viewModel.LoginSuccess += OnLoginSuccess;
            DataContext = viewModel;
        }
    }

    private void OnLoginSuccess()
    {
        var mainWindow = _container.Resolve<MainWindow>();
        RegionManager.SetRegionManager(mainWindow, _regionManager);
        mainWindow.Show();
        Close();
    }
}