fieldmarking question?

[Michael Lee]

Hi Martyn,

Quick generates default designer procedures for fields which are not accessible to the
program BUT are which can be overridden. The designer procedure is tied to the ID # of the
field in question so if field X has id # 03 then the following Quick code is generated

PROCEDURE DESIGNER 03
ACCEPT X

You can override this by entering in your own designer procedure as follows:
PROCEDURE DESIGNER 03
BEGIN
   IF <whatevercondition>
   THEN ACCEPT X
   ELSE DISPLAY X
END

In order for the ACCEPT to work though you would have to remove the "NOCHANGE" option.

In order to create a designer procedure for X that is similar to 'nochange' but which
doesn't give the same error message you would enter the following:


PROCEDURE DESIGNER 03
BEGIN
   DISPLAY X
END

Regards,

Michael Lee
MCL Systems Inc.


"Thomson, Martyn EDUC:EX" wrote:

> I have a screen that uses the fieldmark action -
>
> actionmenu label "Modify" action fieldmark menukey "M"
>
> It enables the client to arrow from label to label and then hit ENTER to
> access the field they wish to change.
> If the field statement has the "nochange" option, they get the message
> "Can't change the specified field(s)".
> My question is - is there any way I can make access to a field conditional
> in this scenario (i.e "nochange if..."
> aka "entry if")?
> I can't see a field option or anywhere I could add code to intercept this.
> There's no generated modify procedure
> I could tweak. I could put a test in the input procedure, but I want to make
> the field appear unavailable rather
> than generate an error message after the event.
> Is this at all possible?? is there an alternative approach?
> The only alternative I see and want to avoid is to move everything but the
> key input field to a subscreen and
> have 2 lookalike versions of the subscreen - one for each result of the
> conditional test.
> Martyn Thomson
> 7.10.G1 on OpenVMS AXP v7.2-1, Oracle Rdb V7.0-5.
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