Expression evaluation error at function a!util_sasaUiSource: An error occurred w

I'm not seeing any mention of a!util_sasaUiSource in the SAIL code you provided. Is it called within a rule that is referenced on that SAIL form?

The exception triggers when the user clicks the "Add Country" button widget

What is the reasoning behind using if(1, <condition 1>, <condition 2>)? This will always evaluate to return condition 1. Are all of the variables that are being returned holding data? The null point exception makes it seem like one or more of these are returning null

I added the value 1 to check the condition for verification purpose later I'll change that the the count >0 of the incoming variable.

@deepanc Quick observations:

1. associatedRegions is initiated as an array variable in load().
local!associatedRegions:{}

2. But under "Add country" button you are expecting the same variable to behave as an CDT which is not right as per my knowledge. So this could be cause of an issue.
Example:
local!associatedRegions.REGION_EID
local!associatedRegions.NAME

In order to resolve this, initialise the associatedRegions to the desired cdt type. For instance it should be local!associatedRegions: {type!my_CDT()}. Go with this resolution only if you expect local!associatedRegions to behave as CDT. Else plan for an alternative way of coding.

Also please note that, under the "Add country" button component, you are using 'apend' instead of append which will result in an error down the line when you include a valid condition in if().

a!save(local!associatedRegions.REGION_EID,if(1, local!unassignedRegionID,apend(local!associatedRegions.REGION_EID, local!unassignedRegionID)))

AFAIK a!util_sasaUiSource() is an internal function used by Appian while rendering UI and this hasn't been exposed to us. I often see it in errors. So I guess we don't need to think about it.

@SIK, Thanks Sik, I have realised and corrected the same and I slightly modified the code now to still simplify the logic.I'm able to get expected data, but now the challenge is all the records are getting added to one column.. but that should go as one by one on the paging grid

@deepanc No problem, please go through the attached code and do let me know if you have any follow up questions.

pagingGrid3.sail

@ SJK, Thanks for the code., The Form is displaying values good when I pass as a parameters, but on the execution time the SAIL form is ending up with Exception message "Interface Definition: Expression evaluation error at function a!formLayout [line 23]: A grid component [label=“Assigned Countries”] has an invalid value for “identifiers”. None of the values in “identifiers” can be null." ....can you suggest...

Thanks,
Deepan

The grid cannot load the value of CDT as the same is returning null.

@deepanc Seems like there are null values in the local!datasubset.data.REGION_EID. I am assuming that REGION_EID is a unique key. Is it possible?

Additionally please ensure that debugging is made by checking how the values are being appended to ri!pl_associatedRegion.

Please do let me know if you have questions.