[C++, V8i]Can I add XAttr to namedgroup element ?

Hi All,

I use the following code to add XAttribute to a named group element. But seems no success. I am unable to check named group element in Element Information dialog, so it is difficult to verify if I add XAttr successfully.

void AddXAttrToNamedGroup (NamedGroupP pNamedGrp)
{
   EditElemHandle eeh (mdlNamedGroup_getElementRef(pNamedGrp), ACTIVEMODEL);
   XAttributeHandlerId handlerId (XATTRIBUTEID_MajorId, XATTRIBUTEID_SubId);
   eeh.ScheduleWriteXAttribute (handlerId, 0, dataSize, dataBuf);
   eeh.AddToModel (ACTIVEMODEL);
}

BTW, I am not sure if I need to call AddToModel after calling ScheduleWriteAttribute ?

Any help are appreciated !

Xue