custom class as property - access results in Nil object exception?

[Markus Winter <markus_winter at blueyonder dot co dot uk>]

Hi all,

I made a few custom classes, among them plasmid with properties like

   name as string
   length as integer

I then added my custom class as a property to a window:

  ThisPlasmid as plasmid

All are public. I then try to access them by

  ThisPlasmid.name = Editfield.text

in the text change event of the editfield but get a Nil exception error.

Where do I go wrong? I can access other (non-custom) properties that I added
to the window just fine ...

Thanks

Markus

P.S. System: Powerbook G4, 1 GHz, 1 GB, MacOS X 10.3.7, RealBasic 5.5.4


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