navigation and how to register the view with the region?

Question

I have two views between which I want to navigate on button click and they are registered with a region on module initialization like this:

public class ModuleTaxCalc : IModule //PRISM MODULE POWER
{
    IUnityContainer container;
    IRegionManager regionManager;


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

    }

    public void Initialize()
    {

        container.RegisterType<ICustomer, Customer>();

        //container.RegisterType<object, ViewA>("ViewA");
        //container.RegisterType<object, ViewB>("ViewB");
        regionManager.RegisterViewWithRegion("TaxCalculatorRegion", typeof(ViewA));
        regionManager.RegisterViewWithRegion("TaxCalculatorRegion", typeof(ViewB));

    }


}

My issue is that the 'ViewA' gets visible automatically when application starts/

if I do this instead:

 public void Initialize()
        {

            container.RegisterType<object, ViewA>("ViewA");
            container.RegisterType<object, ViewB>("ViewB");


        }

then both views are invisible and become visible only on button click, but I guess they are not registered with the region in this case.

Answer 1

For navigation, you want to register the views for navigation and then navigate to them.

// register the view
container.RegisterTypeForNavigation<ViewA>();

// and some time later, show it in the region
regionManager.RequestNavigate( "TaxCalculatorRegion", "ViewA" );

If you register the view with a region instead, it will be automatically displayed in that region (View Discovery). Much more detailed info is available in the Prism documentation ...