How do I force a user to ONLY enter up to 2 decimal places?

Try this

Make a formula-text field called [Warning on too many decimals] like this

IF(Abs([price]-Round([price],0.01))>=0.001,"Too many decimals").  Put that field on the form near the price field and hide the label.


Then make a form rule that says

When the record is saved

and [warning on too many decimals is not equal to (blank)

abort the save with message "Too many decimals.  Correct the decimals to two places and tab out of the field  and then try saving again"


(note that like Excel, QuickBase does not see the input or the corrected input until the user tabs out of the field.  That can be confusing to users as they may fix the price, and then keep trying unsuccessfully to Save. Try it and you will see what I mean.

oh that's just so good.  Thanks Mark!

HTML5 Form With Input With Pattern - Add New Record
https://haversineconsulting.quickbase.com/db/bj25hj6wv?a=nwr

Pastie Databsase
https://haversineconsulting.quickbase.com/db/bgcwm2m4g?a=dr&rid=398

Mnookin: "On Average We Have Two Answers To Every Question"
https://www.youtube.com/watch?v=9uR_t-6iTJk&feature=youtu.be&t=3m50s

How dichotomous! Native v Script, Yin v Yang, Geometric v Algebraic

@Mark - My analogy so I ascribed you Yin and I claimed Yang

 http://www.differencebetween.net/miscellaneous/difference-between-yin-and-yang/

Thx Dan, I'm good with being Yin to your Yang.

I'm trying to implement similar logic, but limiting the user to 5 decimal places, rather than just 2. There seems to be some limitation with QB formulas/functions, based on the length (that is, 5 vs 2), that I can't quite wrap my head around. Is anyone able to implement this logic successfully?

Did this not work for you?

IF(Abs([price]-Round([price],0.01))>=0.001,"Too many decimals").  Put that field on the form near the price field and hide the label.

In your case it would be

IF(Abs([price]-Round([price],0.00001))>=0.000001,"Too many decimals").  Put that field on the form near the price field and hide the label.