XAML: access to controls inside user control

Question

I have userControl like this:

Answer 1

I found the solution.

And in C# code :

public static readonly DependencyProperty TitleProperty = DependencyProperty.Register("Title", typeof (String), typeof(MyButton),null);

    public String Title
    {
        get { return (String)GetValue(TitleProperty); }
        set { SetValue(TitleProperty, value); }
    }

And then in everywhere you can use like this: