有没有办法在XF中覆盖标签的text属性？

using Xamarin.Forms;

public class CustomLabel : Label
{
    public static readonly BindableProperty CustomTextProperty =
        BindableProperty.Create(nameof(CustomText), typeof(string), typeof(CustomLabel), default(string));

    public string CustomText
    {
        get { return (string)GetValue(CustomTextProperty); }
        set { SetValue(CustomTextProperty, value); }
    }

    public CustomLabel()
    {
        SetBinding(TextProperty, new Binding(nameof(CustomText), source: this));
    }

    protected override void OnBindingContextChanged()
    {
        base.OnBindingContextChanged();
        OnPropertyChanged(nameof(CustomText));
    }

    protected override void OnPropertyChanged(string propertyName = null)
    {
        base.OnPropertyChanged(propertyName);
        if (propertyName == nameof(CustomText))
        {
            Text = CustomText;
        }
    }
}

<local:CustomLabel CustomText="Hello XF!" />