Order In Chaos Of Control Initialization Steps

Question

I would like to know when is actually what happening inside initalization process of controls when I start a WPF application?

When are DP initalized? When Binding? W

Answer 1

In WPF you are setting default values for DP with PropertyMetaData not via constructor.

public partial class UserControl1 : ContentControl
{
    public UserControl1()
    {
        InitializeComponent();
    }

    public string TestDependencyProperty
    {
        get { return (string)GetValue(TestDependencyPropertyProperty); }
        set { SetValue(TestDependencyPropertyProperty, value); }
    }

    public static DependencyProperty TestDependencyPropertyProperty =
        DependencyProperty.Register("TestDependencyProperty", typeof(string), typeof(UserControl1), 
        new PropertyMetadata("234"));
}