Your address book is inside the function. Place it outside. (Well that's a hunch of having seen many solutions like that.)
-- Matthias On Dec 9, 2010, at 5:33 PM, Ken Hegeland wrote: > I am working on 39.1.8 of HTDP > http://htdp.org/2003-09-26/Book/curriculum-Z-H-49.html#node_sec_39.1 > > I have the gui all set up. The examples in the book use: > (define friends > (make-address-book "friends")) > and then applies friends to the argument, 'add, or 'search. > > My thought was a basic list processing function that applies make > address-book to each item in the list of strings. But how can I refer to them > later in the program? > > I thought maybe have the button callback for add/search apply > make-address-book to choice-index, this idea worked for adding the > name/numbers, but when I try searching it searches empty address-books. Im > thinking whats wrong is every application of add creates a new address book > and adds the input. Any tips for this problem? > > > > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
