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In article <14183@gazette.bcm.tmc.edu> ckeller@mbcr.bcm.tmc.edu (Charles Keller) writes:
>
>Once in the structure design mode, how do you eliminate a field?
>
>Charles Keller
>[ckeller@mbcr.bcm.tmc.edu]
>

Aha, you've discovered one of the interesting things about 4D.  You can't.
Someone was explaining this recently and there is supposedly a reason for it.
In FileMaker, for instance, if you try to delete a field that's used in a 
calculation field, it won't let you do it.  4D's procedures can get a whole lot
more complicated, and since the procedures use pointers (of sorts) to the
structure, you could get into big trouble when a long lost procedure needs
to get the field you just deleted.  

Apparently there's a flag you can turn off (or on) with ResEdit that will 
allow you to delete fields, but I haven't tried to find it.  I just call
the empty field "Reserved" and set it to Alpha-2 or boolean.

I'm not sure agree with Aci's reasoning on the matter, but I guess verison
1 or beta of 4D allowed field deletion and it caused so many problems they
took it out.

Charles

---
Charles Albrecht                "Nonsense, they only say you can't survive
charlesa@ncar.ucar.edu           The Fire Swamp because no one ever has."
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NCAR - Scientific Computing Division * P.O. Box 3000 * Boulder, Colorado  80307

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