A Property with Collection of lists

Question

Question

Touggourt · 9 hr ago

Hi Guys,

I get the below error when trying to compile an imported class in IRIS, it compiles if I remove [ Collection = list ] so not sure about the use of [ Collection = list ] and if removing it would affect anything and its just a duplication?

Thanks

Product version: IRIS 2024.1

Discussion (2)2

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score 0 · Answer 1 · 2025-09-02T09:01:11-04:00

I'm not sure why you're getting that error, but the Collection keyword is deprecated. You are already declaring the property as a list, so it should be unnecessary anyway.

score 0 · Answer 2 · 2025-09-02T09:02:35-04:00

What version of IRIS/Cache was this class imported from? In 2024.1, the %Collection.ListOfObj class doesn't have a parameter called 'Collection': https://docs.intersystems.com/iris20241/csp/documatic/%25CSP.Documatic.c...

I am fairly sure you can just remove it without issue.