C＃中的简单依赖项属性和UserControl问题

<UserControl x:Class=\"Test.UserControls.MyUserControl1\"
             xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\"
             xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\"
             xmlns:mc=\"http://schemas.openxmlformats.org/markup-compatibility/2006\" 
             xmlns:d=\"http://schemas.microsoft.com/expression/blend/2008\" 
             Name=\"control\">
    <Grid>
        <!-- Text is being bound to outward representative property -->
        <TextBox Text=\"{Binding MyTextProperty, ElementName=control}\"/>
    </Grid>
</UserControl>

public partial class MyUserControl1 : UserControl
{
    // The dependency property which will be accessible on the UserControl
    public static readonly DependencyProperty MyTextPropertyProperty =
        DependencyProperty.Register(\"MyTextProperty\", typeof(string), typeof(MyUserControl1), new UIPropertyMetadata(String.Empty));
    public string MyTextProperty
    {
        get { return (string)GetValue(MyTextPropertyProperty); }
        set { SetValue(MyTextPropertyProperty, value); }
    }

    public MyUserControl1()
    {
        InitializeComponent();
    }
}

<uc:MyUserControl1 MyTextProperty=\"Text goes here\"/>