I have�� a subclass of SpTablePresenter which correctly displays a list of items.�� It is set up to activateOnDoubleClick as I want to open another SpPresenter I have created on the selected table row using the value in the first column to complete the presenter.�� My SpTablePresenter headed Element Attributes is shown bottom left in the attached screenshot.

The class method top right reports that valueAtColumn:row: is sent but not implemented and yet it clearly is implemented by the superclass of my presenter (and I have used the method elsewhere in my project (NB: this method is just an instrument at the moment so that I can check what is happening.

Double clicking a table row executes the method openAttributeEditorOn:�� but the debugger reports instance of my presenter class did not understand valueAtColumn:row:

So what am I doing wrong here?

Advice please.

Regards

Bob Briggs