As there is no support to change color or size for treeviewitem lable, then I try to change Bold dynamically with following test code:
long ll_tvi_root
treeviewitem ltvi_current
ll_tvi_root = tv.Finditem ( RootTreeItem! , 0 )
tv_user.GetItem (ll_tvi_root , ltvi_current )
ltvi_current.Bold = true
Looks like not working. How to change Bold dynamically?