Question
How to make a expression evaluates to false
The 'edit validation' rule has the ability to select the boolean expession '[expression evaluates to true]' but the opposite does not exist. I am making a rule if a value populates in a pagelist's certain property then it hides a particular field. I am having difficulties since visibility may change depending on which value has been populated in the pagelist so I really need the opposite of the '[expression evaluates to true]'. Can someone enlighten me?
***Edited by Moderator Marissa to update platform capability tags****
Please check this link:
https://community1.pega.com/community/pega-support/question/edit-validate-evaluates-false-not-true
Hi Susan,
Thanks for the thread but unfortunately I did read that before writing this post. I believe that post is just pointing out an enhancement request to add expression evaluates to false as a standard.
It would be nice to know how to do the expression evaluates to true from a different method so the opposite can be done.
I have an expression below that evaluates to true.
@IsInPageList("Specific Value","Property in List",PageList)
I would like to have a condition where I can use the expression above evaluates to false.
Thanks,
Masato
Accepted Solution
Hi ,
DId you try adding an negation before the function.
!@IsInPageList("Specific Value","Property in List",PageList)
you can also include the same in a when condition and check whether False= @IsInPageList("Specific Value","Property in List",PageList)
Let us know if it works..!!
Hello,
Are you talking about the Edit Validate rule? If not can you share some screen shot of your rule where you are trying to perform this validation. If you are trying it in Edit Validate rule then its just a piece of Java code that you can write to perform your validation.
Thanks,
Mahesh M