Can you bind the selected item in a listbox to a separate object in WPF?

Question

If I have two objects, one being the list of items, and the other having a property storing the selected item of the other list, is it possible to update the selected item through binding in WPF?

Lets say I have these two data structures:

public class MyDataList
{
    public ObservableCollection<Guid> Data { get; set; }
}

public class MyDataStructure
{
    public Guid ChosenItem { get; set; }
}

Is it possible to bind a Listbox to an instance of both objects so that the ChosenItem property gets set by the selected item of the ListBox?

EDIT: To make things a bit clearer, there might be many instances of MyDataStructure, each with a chosen item from MyDataList. The data list is common to all the instances, and I need a way to select an item and store that selection in the MyDataStructure.

Answer 1

Make this two properties inside a single class(Just to simplify the solution) and make the code ready for property changed events

 public class MyDataList : INotifyPropertyChanged
{
    private Guid _choosen;

    public ObservableCollection<Guid> Data { get; set; }

    public Guid ChosenItem {
        get
        {
            return _choosen;
        }
        set 
        {
            _choosen = value;
            PropertyChanged(this, new PropertyChangedEventArgs("ChosenItem"));
        } 
    }

    public event PropertyChangedEventHandler PropertyChanged;
}

create an instance of this class and Bind to the DataContext of the ListBox Now write the ListBox XAML code as bellow. SelectedValue binding is doing the trick here.

<ListBox ItemsSource="{Binding Data}" SelectedValue="{Binding Path=ChosenItem}" x:Name="listBox"/>

Answer 2

I believe you should be able to do this (make sure to declare the local namespace):

<Window.Resources>
    <local:MyDataStructure x:Key="mds1" />
</Window.Resources>    
<ListBox ItemsSource="{Binding Data}" SelectedValue="{Binding Source={StaticResource mds1} Path=ChosenItem}"/>