Caliburn Micro: Screen.TryClose does not work - caliburn.micro

Question

I am running out of hair in frustration.
I have made a somewhat minimal example where the same viewmodel/view acts as main window and dialog. Hope this does not cause confusion.
class DialogViewModel : Screen
{
private readonly IWindowManager _windowManager;
public DialogViewModel(IWindowManager windowManager)
{
_windowManager = windowManager;
}
public void ShowDialog()
{
_windowManager.ShowDialog(new DialogViewModel(_windowManager));
}
//----------
public DialogViewModel()
{
}
public void Close()
{
TryClose();
//TryClose(true);
//TryClose(false);
}
}
<Window x:Class="Views.DialogView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
xmlns:cal="clr-namespace:Caliburn.Micro;assembly=Caliburn.Micro.Platform"
mc:Ignorable="d"
d:DesignHeight="100" d:DesignWidth="200">
<WrapPanel>
<Button>
Close
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<cal:ActionMessage MethodName="Close" />
</i:EventTrigger>
</i:Interaction.Triggers>
</Button>
<Button>
Show Dialog
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<cal:ActionMessage MethodName="ShowDialog" />
</i:EventTrigger>
</i:Interaction.Triggers>
</Button>
</WrapPanel>
</Window>
public sealed class AppBootstrapper : BootstrapperBase
{
private SimpleContainer _container;
public AppBootstrapper() : base(true)
{
StartRuntime();
}
protected override void OnStartup(object sender, StartupEventArgs e)
{
DisplayRootViewFor<DialogViewModel>();
}
protected override void Configure()
{
_container = new SimpleContainer();
_container.Singleton<IWindowManager, WindowManager>();
_container.Singleton<IEventAggregator, EventAggregator>();
_container.PerRequest<DialogViewModel>();
}
protected override object GetInstance(Type service, string key)
{
var instance = _container.GetInstance(service, key);
if (instance != null)
return instance;
throw new InvalidOperationException("Could not locate any instances.");
}
protected override IEnumerable<object> GetAllInstances(Type service)
{
return _container.GetAllInstances(service);
}
protected override void BuildUp(object instance)
{
_container.BuildUp(instance);
}
}
The call TryClose() does not initiate OnDeactivate.
According to https://caliburnmicro.codeplex.com/wikipage?title=Screens,%20Conductors%20and%20Composition and the several posts here on stackoverflow the above should be enough. But nothing happens when I call TryClose().
Please note that code does run and show the dialogs on my machine. If something is missing, please let me know.
Any ideas why?
Thank you!

Answer 1

StartRuntime should be Initialize(), codeplex code is really really outdated with release of v2. Reference github.com/bluespire/Caliburn.Micro or CaliburnMicro.com. I assume this is a WPF App. Also your Button's don't appear to be correct.
<Button x:Name="ShowDialog" Content="ShowDialog" />
<Button x:Name="Close" Content="Close" />
I am assuming this is a WPF application.