All:
SET NULL '<space> ' (ASCII 032) is often used within On Before Design
and On After Start form EEPs to suppress display of the default NULL
construction '-0-' within form controls.
This presents a conflict when a <space> is entrained within the user's
input, and an On Exit EEP attempts to replace it:
IF vdim_input CONTAINS '<space>' THEN ;
(SRPL(.vdim_input,'<space>','-',0)) ; ENDIF
... produces the error:
-ERROR- NULLs cannot be used in comparisons other than NE or EQ. (2315)
An attempt to use a "hard" space [alt 255] in place of the NULL <space>
character displays an extended ASCII character in all VARIABLE LABEL
controls containing NULLs; Calibri font, in the example:
Is there any ASCII code which will reliably suppress display of NULLs
without creating a conflict for routines dealing with ASCII <space>s in
user input? I have not tested for other controls yet.
Thanks!
Bruce A. Chitiea
SafeSectors, Inc.
-----------------------------------
112 Harvard Ave #272
Claremont CA 91711-4716
-----------------------------------
[email protected]
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+011 (909) 238-9012 c
+011 (909) 912-8678 f
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