Hi, I'm a currently working my way through the NetBeans Platform for Beginners book and struggling with the following: I want to extend the example in section 7.1.6.2 (an explorer view to create and delete Car objects) such that the node tree gets an intermediate layer like this:
Root - Brands starting with 'A' - Aston Martin Brands starting with 'B' - Bugatti - BMW Brands starting with 'M' - Mercedes So, my requirements are this: - I don't want to represent the intermediate layer in my data model; it should still be just a list of Car objects with a brand property. - I want to display the intermediate "Brands starting with 'X'" nodes only if a brand starting with the letter actually exists in my data model. We don't want to clutter the user interface with 26 nodes for letters A to Z. - If the user deletes the last Car with a brand starting with, say, 'M', then the respective node should vanish from the UI. After several hours of experimentation I am stuck. Hence, any pointer how to achieve that, e.g., where to attach what listeners are greatly appreciated. Best wishes, Andreas -- Dr. Andreas Sewe | s...@cqse.eu | +49 152 56342856 CQSE GmbH | Lichtenbergstrasse 8 | 85748 Garching | www.cqse.eu Amtsgericht Muenchen | HRB 177678 | GF: F. Deissenboeck, M. Feilkas
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