CODEWITHSUNDEEP
c#wpfunity-containerprism
Joby James
Joby James

Reputation: 429

Switch View in different Modules using Prism and Unity

I want to navigate from ModuleA View to ModuleB View. How can I implement navigation between modules?

In my application which uses Prism framework, I have two module

I configure two modules in my Bootstrapper like this:

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

            ModuleCatalog moduleCatalog = (ModuleCatalog)this.ModuleCatalog;
            moduleCatalog.AddModule(typeof(ModuleA));
            moduleCatalog.AddModule(typeof(ModuleB));
        }

I register my both Views in my ModuleA and ModuleB like this:

public class ModuleA : IModule
    {

        private readonly IRegionManager  regionManager;
        private readonly IUnityContainer container;

        public StaffModule(IUnityContainer container, IRegionManager regionManager)
        {
            this.container     = container;
            this.regionManager = regionManager;
        }

        public void Initialize()
        {
            this.regionManager.RegisterViewWithRegion("MainRegion", () => this.container.Resolve<StaffView>());
         }           
    }


public class AccountModule : IModule
    {
        private readonly IRegionManager  regionManager;
        private readonly IUnityContainer container;

        public AccountModule(IUnityContainer container, IRegionManager regionManager)
        {
            this.container     = container;
            this.regionManager = regionManager;
        }

        public void Initialize()
        {
             container.RegisterType<object, AccountView>("AccountView");
            ////this.regionManager.RegisterViewWithRegion("MainRegion", () => this.container.Resolve<AccountView>());
        }
    }

When I click Button from StaffView in ModuleA, I want to navigate to AccountView in ModuleB. Here is my code for navigation.

private void LodeViewfromModule()
{
   IUnityContainer unityContainer = ServiceLocator.Current.GetInstance<IUnityContainer>();
   var regionManager=unityContainer.Resolve<IRegionManager>();
   var uri = new Uri("pack://application:,,,/PrismAuto.Account;component/AccountView.xaml", UriKind.RelativeOrAbsolute);
   regionManager.RequestNavigate("MainRegion", uri);
}

But it shows:

System.Object exception.

Please, anyone help me to solve this problem.

Upvotes: 0

Views: 1505

Answers (1)

user5420778
user5420778

Reputation:

You are registering your view for navigation using:

container.RegisterType<object, AccountView>("AccountView");

and navigating to it like:

var uri = new Uri("pack://application:,,,/PrismAuto.Account;component/AccountView.xaml", UriKind.RelativeOrAbsolute); regionManager.RequestNavigate("MainRegion", uri);

This is wrong. You need to navigate to it using the key your provided when you registered it for navigation:

regionManager.RequestNavigate("MainRegion", "AccountView");

Also, if you are using Prism 6 there is an extension method in the Prism.Unity namespace for registering your views for navigation like this:

container.RegisterTypeForNavigation<AccountView>();

Upvotes: 5

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