# UI Update issue PropertyGroup UIList Item 'name' prop's update hook?

This is hard to explain but I will try.

I have a panel UI that I use to generate a geometry but lets call it a parent group object.

I have a PropertyGroup List with a PropertyGroup for the Items so each generated object is stored in the list, so where you select the item in the list the UI in the same panel updates with the different objects properties and name that it's given. This name is the Geo's name in the Scene Property viewer as well as the name in the item in the list, which is the only thing I display there in the list.

When I rename the actual object not in my panel I have a complex solution where a watcher is monitoring for name changes and looking to update the panel. I can simply update the item.name from the list to the new name and it is visually seen to update, but when it comes to the field that represents the name in the properties panel I can in theory update it but it doesn't change visually no update. This is StringProperty that does not have an update function or anything like it but probably should I just don't know how to trigger it.

If I try to create a 'name' StringProperty in the List PropertyGroup it won't let me so I'm unable to assign an 'update' function.

If I create an extra property called geoName and assign an update function, then I can set it's value to the StringProperty via myProp = self.name. I guess I'm looking for a way to assign an update function to the 'name' property that is part of a list via

listGroup = props.PointerProperty(type=ListGroup)


So the UI shows it this way

ro.template_list("ListGroup", "Group_List", listGroup, "items", listGroup, "idx")


That is a UIList that has a draw_item function

class ListGroup(bpy.types.PropertyGroup):
idx = bpy.props.IntProperty(name="Index", description="Index for ListGroup", default=0, update=listItemSelected)
items = bpy.props.CollectionProperty(type=ListGroupItem)
and this

class GenSourceItem(bpy.types.PropertyGroup):
#items like StringProperty are here


is the set of properties where you can not seem to add the update function to the name property because it already exists so I can't set the field in the UI that is for creating them. The name field is also a way to edit it (which works and renames the geo and the list's name), but again if I edit the name of the object and the list updates it can't update the StringProperty in the panel without having an extra go between value I've assigned an update function to.

Said another way for clarity: since the UIList item has a 'name' and I can change/update it but I can't be notified it updated and reflect the change in the panel. How might I assign an update function to the List Items name property? or tell a StringProperty in a Panel to update. That parts wierd because I can update it somewhere in this watcher watching (continuously for what should be a geo name update event), and it seems to change it there, but I guess it must be out of the display context somehow (I guess because that geoObj name change is happening in the official Scene tree viewer)?