Question
Null
US
Last activity: 28 Oct 2024 4:54 EDT
Evaluating an expression provided as String inside Data Type
Hello! Let's assume We have a Data Type. There, We store questionnaire data in four columns: ID, QuestionText, Answer, IsQuestionVisible. My concern is about "IsQuestionVisible" column. Having "true/false" values inside makes it easy.
But WHAT IF We would like to store an expression in IsQuestionVisible column instead, e.g. D_Questionnaire[ID:"1"].Answer=="yes"? Will this be evaluated in Visiblity condition inside Section (Repeating Dynamic Layout)? Or in Data Transform?
From what I found, it does not work, but maybe there is a way... Without unnecessary overthinking, hopefully :)
Thank You in advance for Your thoughts!
Rulesstack Private Limited
IN
Hi @DevousF17255543,
Have you tested the paramertised data page stand alone by passing parameters, if it is working correctly then add visibility condition in section.
If Data page is not working stand alone. Please follow below steps.
- Check Source of DP, If it is RD add all columns in RD based on your requirement and add filter condition.
- Pass the Parameter from source to DP.
Thanks
Ajay.
Null
US
@Ajay Kumar Atmakur Good afternoon,
thank You for response!
I believe parametrised Data Page used directly in section's viibility condition COULD actually work. But I want to provide not a static visibility condition, but a dynamic one (for Repeating Dynamic Layout) - the one stored in IsQuestionVisible column of Questionnaire Data Type.
Let's assume We have similar Data Type:
| ID | QuestionText (.Question) | Answer (.Answer) | IsQuestionVisible (.IsVisible) |
|---|---|---|---|
| 1 | Are You happy? | (to be chosen at runtime) | true |
| 2 | Are You over 18? | (to be chosen at runtime) | true |
| 3 | Do You like cars? | (to be chosen at runtime) | D_Questionnaire[ID:"2"].Answer=="yes" |
Now, having Repeating Dynamic Layout, We provide two controls - DisplayText for QuestionText (.Question) and Boolean for Answer (.Answer). In dynamic layout's visiblity condition, instead of static expression, I would like to pass ".IsVisible". And, of course, it will work for ID=1 and ID=2 (string will come as "true" - it will be evaluated).
@Ajay Kumar Atmakur Good afternoon,
thank You for response!
I believe parametrised Data Page used directly in section's viibility condition COULD actually work. But I want to provide not a static visibility condition, but a dynamic one (for Repeating Dynamic Layout) - the one stored in IsQuestionVisible column of Questionnaire Data Type.
Let's assume We have similar Data Type:
| ID | QuestionText (.Question) | Answer (.Answer) | IsQuestionVisible (.IsVisible) |
|---|---|---|---|
| 1 | Are You happy? | (to be chosen at runtime) | true |
| 2 | Are You over 18? | (to be chosen at runtime) | true |
| 3 | Do You like cars? | (to be chosen at runtime) | D_Questionnaire[ID:"2"].Answer=="yes" |
Now, having Repeating Dynamic Layout, We provide two controls - DisplayText for QuestionText (.Question) and Boolean for Answer (.Answer). In dynamic layout's visiblity condition, instead of static expression, I would like to pass ".IsVisible". And, of course, it will work for ID=1 and ID=2 (string will come as "true" - it will be evaluated).
Unfortunately, for ID=3 it is not working because expression is not treated as Data Page, but as "raw" string :/
Is there any way to make it work? From what I know We could provide "When:WhenRuleName" in IsQuestionVisible column's row, but it means creating many When rules in the end. Couldn't We just provide expression directly (like I showed in above table) and process it right there or later? Maybe there is some special syntax to make it happen (e.g. providing "+" or "@", having some escape character or something)?
Null
US
Apparently there is no an easy way to achieve this. Probably referencing "IsQuestionVIsible" in Data Transform (to evaluate it as When rule) is the only option. Who knows... The thread can be closed as no how-to answers were provided :)