WPF dependency property precedence & reference type Default Values

Question

If I create a custom control like this:

public class MyControl : ContentControl
{
   public static readonly DependencyProperty ItemsProperty =                       


        

Answer 1

Can't you just specify the default property of the dependency property:

  public static readonly DependencyProperty ItemsProperty = DependencyProperty.Register(
        "Items",
        typeof(ObservableCollection