🔍 View Model Locator

The View-Model Locator helps initializing and injecting View-Models and it's dependencies.

View-Model Locator

Begin by creating the View-Model Locator object:

public class ViewModelLocator
{
    private readonly IInjector _injector = new Injector();
    public UserViewModel UserViewModel => InjectionResolver.InjectConstructor<UserViewModel>(_injector);
    // other view models go here
}

You can use a static singleton instance for the injector parameter - See Dependency Injection 📖

The ViewModelLocator has to be registered in the Application Resources:

<Application ...>
    <Application.Resources>
        <local:ViewModelLocator x:Key="ViewModelLocator" />
    </Application.Resources>
</Application>

Locate a View-Model

To locate a View-Model, just bind to it using the ViewModelLocator as your Source:

<UserControl
    ...
    DataContext="{Binding UserViewModel, Source={StaticResource ViewModelLocator}}">

This will automatically invoke the InjectConstructor() call and return an initialized UserViewModel instance.

See What is a ViewModelLocator? 🌐 and View Model Locator in WPF 🌐