Hi
The following works well and it is simple enough that I can almost understand
it.
Thanks everyone.
Bob
if DBEdit2.Text <> '' then
DBCheckBox4.Enabled := true
else
DBCheckBox4.Enabled := false
----- Original Message -----
From: Colin Johnsun
To: NZ Borland Developers Group - Delphi List
Sent: Monday, April 26, 2010 5:53 PM
Subject: Re: [DUG] Enable CheckBox
Yeah, that was my thinking on the topic too! But you said it much better :)
BTW, I'm wondering if Bob, the originator of this thread, wants to chime in
and let us know if any of these suggestions helped or not.
On 27 April 2010 10:34, Jolyon Smith <jsm...@deltics.co.nz> wrote:
Maybe it’s just me, but “A doesn’t equal B” surely reads more closely to
the real meaning than “not (A does equal B)”.
Apart from anything else, the latter requires parentheses to avoid the
compiler getting confused and trying to do : “(Not A) equals (B)”. i.e. the
latter syntax is also to the compiler less close to the real meaning (since it
requires disambiguation).
From a human perspective the scanning is more fluid: A <> B, reads left to
right entirely as intended: “A does not equal B”.
NOT (A = B) on the other hand requires me to read it like a syntax tree
parser: “NOT “ … (OK, store the fact that I have to logically invert what
follows, keep a mental note of parentheses) … then what follows is “( A is
equal to B )” , right OK, so “A is equal to B inverted”, i.e. A does not equal
B.
In other words, exactly what is menat literally and clearly when I write… A
<> B.
But as I say, maybe it’s just me.
NOT (I think like a computer).
;)
------------------------------------------------------------------------------
_______________________________________________
NZ Borland Developers Group - Delphi mailing list
Post: delphi@delphi.org.nz
Admin: http://delphi.org.nz/mailman/listinfo/delphi
Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject:
unsubscribe_______________________________________________
NZ Borland Developers Group - Delphi mailing list
Post: delphi@delphi.org.nz
Admin: http://delphi.org.nz/mailman/listinfo/delphi
Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject:
unsubscribe
