How do I run a script so that the user does not have to click into and out of a read-only calculated numeric field?

Question

Hi all
I have a read-only calculated field, and I want to build actions on it, dependent on what the answer to the calculated field is.
I have used action builder, and it works, but only if the form filler clicks in and out ("exits") the field, which they didn't have to enter in the first place, because it populates as a result of a previous script.
To be more precise, The questions asked before this field are:
Date of submission (submitdate):
Date of event (eventdate):
Calculation occurs (days between event and submission), and answer is populated in a field called 'daysbetween'
Now I have a set of conditions:
If the daysbetween is < or = 14, then I want a message to come up saying ineligible to apply
If the daysbetween is >14 and < or = 28, then I want a message to come up saying a fast track fee will be applied, and I want the fast track fee box to be populated, and I want the fast track fee box to appear.
I used the action builder to get all of this to work, except that it only works if the user then clicks in and out of  the 'daysbetween' field, which they shouldn't have to, because it's already calculated for them
I feel like I have to put this script in an earlier field...but I don't know where - action builder won't let me do it in the 'eventdate' field
Thanks in advance

Answer 1

Put a shift register on the border of your loop. Have a case statement that contains the "Get time" function in one case of the case statement. Make that case = 3 and wire the loop iteration to the case selector. Have the time value loaded onto the shift register in the "2" case (interations count from zero), have the shift register passed through on all others ("Default"). Then subtract this time from current to get elapsed time. You probably want to put the subtraction/comparison in a "sub-case" in the "default" that only is valid for interations > 3 or you will get some really ugly "times" until the shift register is loaded, or you could initialize it from outside the loop with the time, but this will cause it to show elapsed times from the beginning that suddenly jump back to a low number after iteration 2.
P.M.
@ Corning? Which one? I was doing LabVIEW at Corning back in '96
Message Edited by LV_Pro on 09-23-2005 10:07 AM
Putnam
Certified LabVIEW Developer
Senior Test Engineer
Currently using LV 6.1-LabVIEW 2012, RT8.5
LabVIEW Champion
Attachments:
elapsed time.vi ‏24 KB