CODEWITHSUNDEEP
prism.net-core-3.1wpf-core
Bluecomb
Bluecomb

Reputation: 11

Unable to register VM through Prism Navigation

I'm creating WPF Core 3.1 app using Prism 7. In one of the view I am trying to register the view model for PRISM navigation through:

containerRegistry.RegisterForNavigation<ViewA, ViewAViewModel>();

And when required I do request to PRISM navigation service to navigate to the view using Region Manager

_regionManager.RequestNavigate(RegionNames.ContentRegion, "ViewA");

Navigation to the view is completed and I'm able to see the view on the defined region but the view model is not assigned to the view.

I tried to manually register the view model using the ViewModelLocationProvider but still the view model is not assigned.

ViewModelLocationProvider.Register<ViewA, ViewAViewModel>();

But if I use the PRISM Autowire property in the view then the view model is discovered and assigned to the view.

prism:ViewModelLocator.AutoWireViewModel="True"

View model class declared using IConfirmNavigationRequest interface required for navigation request handling

public class ViewAViewModel : RegionViewModelBase , IConfirmNavigationRequest

I am unable to figureout what I'm missing here.

Upvotes: 0

Views: 175

Answers (1)

AcidRaZor
AcidRaZor

Reputation: 83

The only thing I see wrong is that you would need to use the interface INavigationAware, not IConfirmNavigationRequest. I assume RegionViewModelBase implements BindableBase already.

public class ViewAViewModel : RegionViewModelBase, INavigationAware

Upvotes: 1

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