Based on CodePLex discussion https://wpftoolkit.codeplex.com/discussions/351469.
If a propertyItem from an expandable PropertyItem is modified, and the parent PropertyItem uses it in its ToString() method, we should update the parent PropertyItem editor to reflect the modification.
Comments: ** Comment from web user: netniv **
If a propertyItem from an expandable PropertyItem is modified, and the parent PropertyItem uses it in its ToString() method, we should update the parent PropertyItem editor to reflect the modification.
Comments: ** Comment from web user: netniv **
Has this been fixed in v2.7? I know that CE is only at 2.5 now, but just wondering if it has been and whether there's any anticipated date for this yet, as it's something I could really do with. Will try the INotify temporary fix if not.