def build_tag_treeview(self,tree,desc):
treeview = TreeView(tree,desc)
# Global treeview properties
treeview.set_property("enable-tree-lines", False)
treeview.set_rules_hint(False)
treeview.set_row_separator_func(self.is_tag_separator_filter)
treeview.set_headers_visible(False)
treeview.set_dnd_name('gtg/tag-iter-str')
treeview.set_dnd_external('gtg/task-iter-str',self.ontag_task_dnd)
#Updating the unactive color (same for everyone)
self.unactive_color = \
treeview.style.text[gtk.STATE_INSENSITIVE].to_string()
treeview.set_sort_column('tagname')
return treeview
