Prism Auto ViewModelLocator with Subdirectories in UWP - mvvm

Question

I don't know if it is a good pratice, but I would like to use subdirectories into the directories "Views" and "ViewModels"
I have this code right now
namespace Project.Universal.ViewModels.Sales
{
public class SalesListViewModel:ViewModelBase
{
// Properties
private string _test;
private ICollection<Sale> _sales;
public string Test
{
get => _test;
set => SetProperty(ref _test, value);
}
public ICollection<Sale> Sales {
get => _sales;
private set
{
}
}
// Services
private readonly IStandardService<Sale> _salesService;
// Commands
public DelegateCommand Update { get;}
// Constructor
public SalesListViewModel(IStandardService<Sale> salesService)
{
Debug.WriteLine(">>>> Initializing SalesListViewModel, trying to set _salesService.");
_salesService = salesService;
Debug.WriteLine(">>>> Delegating command to update SalesListViewModel.");
Update = new DelegateCommand(async () =>
{
Sales = await _salesService.GetAsync();
Test = "Test";
});
}
}
}
And this is my view page
<mvvm:SessionStateAwarePage
x:Class="Project.Universal.Views.Sales.SalesListPage"
mvvm:ViewModelLocator.AutoWireViewModel="True"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:Project.Universal.Views.Sales"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
xmlns:mvvm="using:Prism.Windows.Mvvm"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid Margin="{StaticResource MediumLeftTopRightBottomMargin}">
<TextBlock>this is the Sales page</TextBlock>
<TextBlock Text="{Binding Test}"></TextBlock>
</Grid>
</mvvm:SessionStateAwarePage>
But Prism do not inject the view model correctly. Unline this, the Prism Framework is injecting ShellViewModel, like error bellow says:
Error: BindingExpression path error: 'Test' property not found on 'Project.Universal.ViewModels.ShellViewModel'. BindingExpression: Path='Test' DataItem='Project.Universal.ViewModels.ShellViewModel'; target element is 'Windows.UI.Xaml.Controls.TextBlock' (Name='null'); target property is 'Text' (type 'String')
For organization, I want to use this pattern for folders:
Views/Context/ViewPage.xaml for views
ViewModels/Context/ViewModel.cs for viewModels
I'm using a template from Windows Template Studio with Prism 6.3 framework.
Sorry for my english.

Answer 1

After hours I've resolute my problem:
The Windows Template Studio have changed the ViewModelLocationProvider.SetDefaultViewTypeToViewModelTypeResolver() method to mantain compatibility to others frameworks. I've just changed this method like I want and that worked. For others that will have same problem, here's the code.
Class App.xaml.cs
protected override async Task OnInitializeAsync(IActivatedEventArgs args)
{
await ThemeSelectorService.InitializeAsync().ConfigureAwait(false);
ViewModelLocationProvider.SetDefaultViewTypeToViewModelTypeResolver((viewType) =>
{
var viewName = viewType.FullName; // get full type name
var viewModelName = viewName
.Substring(0, viewName.Length - 4)
.Replace(".Views.", ".ViewModels.");
var viewModelAssembly = viewType.GetTypeInfo().Assembly.FullName;
//var viewModel
var viewModelTypeName = string.Format(CultureInfo.InvariantCulture, "{0}ViewModel, Project.Universal", viewModelName);
return Type.GetType(viewModelTypeName);
});
await base.OnInitializeAsync(args);
}