Custom sort collection in PropertyGrid

Hi,

I have a class like this:

class Foo
{
[Category("Foo")]
public int X;
//...
[Category("Test", TypeConverter(typeof(MyCollectionConverter))]
public Dictionary<int,string> MyDic = new Dictionary<int,string>()
}

  and a typeconverter which shows the integer key as hex decimal string:

sealed class MyCollectionConverter : ExpandableObjectConverter {


		public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) {
			var properties = new ArrayList();
			var dictionary = (Dictionary<int, int>)value;
			foreach (var e in dictionary) {
				properties.Add(new DictionaryPropertyDescriptor(dictionary, e.Key));
			}

			var props = (PropertyDescriptor[])properties.ToArray(typeof(PropertyDescriptor));

			return new PropertyDescriptorCollection(props);
		}

		class DictionaryPropertyDescriptor : PropertyDescriptor {
			readonly IDictionary _dictionary;
			public readonly int _key;

			internal DictionaryPropertyDescriptor(IDictionary d, int key)
				: base(key.ToString(), null) {
				_dictionary = d;
				_key = key;
			}		

			public override Type PropertyType => _dictionary[_key].GetType();

			public override void SetValue(object component, object value) {

			}
			public override string Description => _key.ToString("X");

			public override object GetValue(object component) {
				return ((int)_dictionary[_key]).ToString("X");
			}

			public override bool IsReadOnly => true;

			public override Type ComponentType => null;

			public override bool CanResetValue(object component) => false;

			public override void ResetValue(object component) {
			}

			public override bool ShouldSerializeValue(object component) => false;
		}
	}

My problem is that in propertygrid the dictionary is alphabetically sorted because the description is a hex decimal string which results in (0x)100 is before (0x)8. But I would like to sort it by integer or by the order in dictionary so (0x)8 is before (0x)100 as 8 (int) is smaller than 64 (int).

But I also don't want to change the overall order of the propertygrid, only the dictionary values need to be sorted. Is there a way to achieve this?

//edit: I've seen the Sort category in the demo application but is there a way to do this via converter / reflection attribute instead?