CODEWITHSUNDEEP
f#prismunity-container
nicolas
nicolas

Reputation: 9805

Unity, Prism, FSharp

I get a resolve error when I try to inject into a FSharp library but not wen I do so with a CSharp library.

I have 3 projects :

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)

Application class in the 1st project (WPF project, you add prism, remove the startupuri from app.xaml, add on the code behind for the bootstrapper )

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)); 
        }
    }
}

In the C# project 

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

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

    void IModule.Initialize()
    {
    }
}

in the F# project 

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

Upvotes: 3

Views: 847

Answers (1)

nicolas
nicolas

Reputation: 9805

For some reason, the Nuget script for prism added reference in my module project to 

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

While the shell project itself was referencing 

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

A fresh solution that I started made me see the problem. Hence the odd message that it could not resolve UnityContainer itself (which should be registered somewhere by Prism Unity extensions....)

Upvotes: 0

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