Hello @HerrMay,

So, I had a look again. It crashes as soon as your return False in TreeViewFunctions.DoubleClick, indicating that you want to carry out the default action, renaming the node. As you can see in your crash report, it crashes then inside one of the core Cinema 4D C++ modules, c4dplugin. I am not yet sure if there is some sort of callback going wrong or if there is just flat-out a bug in the TreeViewFunctions::DoubleClick + node renaming default code of ours. I will have a look on Monday and then file a bug report or come back here when there is some sort of callback thing going wrong with your treeview interface.

In the meantime, you can replace your TreeViewFunctions.DoubleClick code with this. Not pretty, but it will get the job done. You could ofc do this in a fancier fashion yourself, imitating the node renaming behavior more closely.

def DoubleClick(self, root, userdata, node, col, mouseinfo): """ Called when the user double-clicks on an entry in the TreeView. Returns: (bool): True if the double-click was handled, False if the default action should kick in. The default action will invoke the rename procedure for the object, causing `SetName()` to be called. """ if not isinstance(node, c4d.BaseList2D): return True node.SetName(c4d.gui.RenameDialog(node.GetName())) return True

Here is the result:
rename.gif

Cheers,
Ferdinand

Full code:

shader_view.py

SOLVED Arrange Selected Node Method?