f# - 团结， Prism ，FSharp

Question

当我尝试注入(inject) FSharp 库时出现解析错误，但在使用 CSharp 库时却没有。

我有 3 个项目:

• csharp 中的主要应用
• 一个 CSharp 项目包含一个类，该类的构造函数需要一个 IUnityContainer，该 IUnityContainer 可以很好地实例化
• 一个 FSharp 项目包含一个类，该类的构造函数需要一个 IUnityContainer，该 IUnityContainer 无法实例化并出现错误

Resolution of the dependency failed, type = "ModuleDBGraphFS.ModuleEntityGraphFS", name = "(none)". Exception occurred while: while resolving. Exception is: InvalidOperationException - The current type, Microsoft.Practices.Unity.IUnityContainer, is an interface and cannot be constructed. Are you missing a type mapping?

At the time of the exception, the container was:

Resolving ModuleDBGraphFS.ModuleEntityGraphFS,(none) Resolving parameter "container" of constructor ModuleDBGraphFS.ModuleEntityGraphFS(Microsoft.Practices.Unity.IUnityContainer container, Microsoft.Practices.Prism.Regions.IRegionManager manager) Resolving Microsoft.Practices.Unity.IUnityContainer,(none)

第一个项目中的应用程序类(WPF 项目，您添加 prism，从 app.xaml 中删除 startupuri，为 Bootstrap 添加后面的代码)

namespace WpfApplication
{
    class Bootstrapper : UnityBootstrapper
    {
        protected override DependencyObject CreateShell()
        {
            return this.Container.Resolve<Shell>();
        }

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

            App.Current.MainWindow = (Window)this.Shell;
            App.Current.MainWindow.Show();
        }

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

            ModuleCatalog moduleCatalog = (ModuleCatalog)this.ModuleCatalog;
// OK       moduleCatalog.AddModule(typeof(ModuleDBGraph.ModuleEntityGraph));
// KO       moduleCatalog.AddModule(typeof(ModuleDBGraphFS.ModuleEntityGraphFS)); 
        }
    }
}

在C#项目中

public class ModuleEntityGraph : IModule
{
    private IUnityContainer _container;
    private readonly IRegionManager _manager;

    public ModuleEntityGraph(IUnityContainer container, IRegionManager manager)
    {
        _container = container;
        _manager = manager;
    }

    void IModule.Initialize()
    {
    }
}

在F#项目中

type ModuleEntityGraphFS(container:IUnityContainer, manager:IRegionManager) =
    do printfn "hi"
    interface Microsoft.Practices.Prism.Modularity.IModule with 
        member x.Initialize() = 
            do ()

Answer 1

出于某种原因，prism 的 Nuget 脚本在我的模块项目中添加了对

的引用

C:\windows\assembly\GAC_MSIL\Microsoft.Practices.Unity\1.2.0.0__31bf3856ad364e35\Microsoft.Practices.Unity.dll

虽然shell项目本身正在引用

WpfApplication3\packages\Unity.2.1.505.2\lib\NET35\Microsoft.Practices.Unity.dll

我开始的一个新的解决方案让我看到了问题。因此，奇怪的消息是它无法解析 UnityContainer 本身(应该通过 Prism Unity 扩展在某处注册....)