How do you pass "this" to the constructor for ObjectDataProvider in XAML?

Question

How do you pass "this" to the constructor for ObjectDataProvider in XAML.

Lets say my presenter class is:

public class ApplicationPresenter(IView view){}

and that my UserControl implements IView.

What do I pass to the ConstructorParameters in the code below so that the UserControl can create the ApplicationPresenter using the default constructor?

<ObjectDataProvider x:Key="ApplicationPresenterDS" 
ObjectType="{x:Type Fenix_Presenters:ApplicationPresenter}" 
ConstructorParameters="{ ?? what goes here ??}" d:IsDataSource="True" />

I only need to do this so that I can use Blend 2. I know that I can do this in the code behind, but if I do I can't instantiate the class from within Blend. I also know that I can create a parameterless constructor for ApplicationPresenter and pass it a dummy class that implements IView, but I would rather do this in markup if at all possible.

My code behind at the moment is:

public MyUserControl()
{
    InitializeComponent();
    DataContext = new ApplicationPresenter(this); 
}

Answer 1

i don't know if it works, but you could give your user control a name , e.g.

x:Name="myUserCotrol"

and then use it in a binding:

... ConstructorParameters="{Binding ElementName=myUserControl}" ...

this could work

Answer 2

I'm just starting with Wpf and was under the misapprehension that I should be trying to do everything in XAML. I've just watched a few videos from WindowsClient.net which are starting to clear some things up. But boy is this a complex technology!!!

Answer 3

This will be directly supported (if memory serves well) in the next version of XAML as demonstrated by Rob Relyea at this year's PDC.