EVT_TREE_ITEM_EXPANDED (self.tree, tID, self.OnItemExpanded)
EVT_TREE_ITEM_COLLAPSED (self.tree, tID, self.OnItemCollapsed)
EVT_TREE_SEL_CHANGED (self.tree, tID, self.OnSelChanged)
EVT_TREE_ITEM_EXPANDED (self.tree, tID, self.OnItemExpanded)
EVT_TREE_ITEM_COLLAPSED (self.tree, tID, self.OnItemCollapsed)
EVT_TREE_SEL_CHANGED (self.tree, tID, self.OnSelChanged)