UserControl自定义依赖属性问题

<controls:HomeBarButton Icon="/SuCo;component/Resources/music.png" Text="music"/>

相关UserControl XAML:

    <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
    <Image x:Name="icon" Width="102" Height="102" VerticalAlignment="Stretch"  Source="{Binding Icon}"/>
    <Label x:Name="label" HorizontalContentAlignment="Center" VerticalAlignment="Bottom" Foreground="White" FontFamily="Calibri" FontSize="24" Padding="0" Content="{Binding Text}"></Label>
</StackPanel>

        public ImageSource Icon
    {
        get { return (ImageSource)this.GetValue(IconProperty); }
        set { this.SetValue(IconProperty, value); }
    }

    public static readonly DependencyProperty IconProperty = DependencyProperty.Register("Icon", typeof(ImageSource), typeof(HomeBarButton), new FrameworkPropertyMetadata(OnIconChanged));

    private static void OnIconChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
    {
        dependencyObject.SetValue(Image.SourceProperty, e.NewValue);
    }

    public string Text
    {
        get { return (string)this.GetValue(TextProperty); }
        set { this.SetValue(TextProperty, value); }
    }

    public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string), typeof(HomeBarButton), new FrameworkPropertyMetadata(OnTextChanged));

    private static void OnTextChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
    {
        dependencyObject.SetValue(Label.ContentProperty, e.NewValue);
    }

我做错了什么(