CODEWITHSUNDEEP
c#wpfprism
Cameron Hurst
Cameron Hurst

Reputation: 273

Prism RequestNavigate to new view

I am using WPF Prism 6 with autofac and having issues navigating between views. What I have is a view that I only want to keep alive till I leave it, and the next time I navigate to it, I want to create a new version of this view.

On load, I regist an IModule that has the following code

_regionManager.RegisterViewWithRegion(RegionNames.MainRegion, 
                                      typeof(DxfDisplay.Views.DxfDisplay));

This registers my view and the system works on initial load, I implement the INavigationAware and IRegionMemberLifetime interfaces on the view model and have public bool KeepAlive => false; implementing the IRegionMemberLifetime so that my view is disposed when I am done.

When I navigate away from this view everything is fine, but when I attempt to navigate to navigate to the view using

_regionManager.RequestNavigate(RegionNames.MainRegion, 
                               new Uri("DxfDisplay", UriKind.Relative), parameters);

The view is not opened and a view model constructor is not called. To make the navigation work correctly, I need to register with view with the region again. Or if I change the KeepAlive to true I can navigate back to the original view, but I cannot generate a new view if INavigationAware.IsNavigationTarget returns false.

My question is how do I register the view with the region manager in such a way that when I call _regionManager.RequestNavigate, it will create a new instance of the view and display it. I feel like I am missing something simple and just overlooking it.

Upvotes: 3

Views: 2250

Answers (2)

Isak Savo
Isak Savo

Reputation: 35914

In Prism 7, this is now called RegisterForNavigation<T>() and exists on the IContainerRegistry interface.

For example, in your module:

public class MyModule : IModule
{
    public void RegisterTypes(IContainerRegistry containerRegistry)
    {
        containerRegistry.RegisterForNavigation<MyView>();
    }
}

Upvotes: 0

dvorn
dvorn

Reputation: 3147

_builder.RegisterTypeForNavigation<DxfDisplay.Views.DxfDisplay>();

Upvotes: 3

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