PropertyGrid localization

Hi,

I define PropertyGrid in XAML next way: 

<propgrid:PropertyGrid  x:Name="PropertiesUserControl"  IsSummaryVisible="True" AreNestedCategoriesSupported="True" 
                        IsEnabled="True" AreDefaultSortDescriptionsEnabled="False"  
                        AreCategoriesAutoExpanded="False" SelectedObject="{Binding SelectedObject}"
                        IsAsynchronous="True">
</propgrid:PropertyGrid>

 This way I define property to be shown in PropertyGrid:

[LocalizedCategory("Category"), 
 LocalizedDisplayName("DisplaySomeProperty"), 
 LocalizedDescription("DescSomeProperty")]
public double SomeProperty
{
    get { return _someProperty; }
    set
    {
        _someProperty = value;
        RaisePropertyChanged("SomeProperty");
    }
}

 where LocalizedDisplayName class is:

    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Event)]
    sealed class LocalizedDisplayNameAttribute : DisplayNameAttribute
    {
        static string Localize(string key)
        {
            string resourceValue = Application.Current.Resources[key].ToString();
            try
            {
                return resourceValue;
            }
            catch (Exception)
            {
                return key;
            }
        }
 
        public LocalizedDisplayNameAttribute(string key)
            : base(Localize(key))
        {
        }
    }

 It's loading localized properties, but when I change a language on runtime, properties in PropertyGrid are not localized.

On changing language I have such line:

PropertiesUserControl.Refresh();

 But properties are not refreshed. When I had a look at ItemsSource in debug mode I found out that Accessors of each PropertyDescriptorDataAccessor are not refreshed and have old localized values. How can I refresh them?

Thank you.