diff --git a/lib/gui.py b/lib/gui.py
index d783ac9..2c7f21a 100644
--- a/lib/gui.py
+++ b/lib/gui.py
@@ -120,8 +120,7 @@ class TreeView():
         """
         cid = self.tree.selection()[0]
         # trage die neue ID ins Modell ein
-        self.controller.set_gui_data('teilenummer', cid)
-        self.controller.refresh_gui()
+        self.controller.set_current_item_id(cid)
 
 class LeftFrameAsm(AllFrames):
     def __init__(self, frame, nrow=0, configs=None):