Remove Empty List Preserving Hierarchy

[Yna_Db]

Try List.Clean with the boolean set to true:
http://dictionary.dynamobim.com/#/Core/List/Action/Clean
See also:

Replace blank value in list

Pretty new still to Dynamo. I am moving the values in one parameter field to a different parameter field. This is working. However, I also need to replace all the blank values in the original field with a custom value in the new field. I am trying to use List.ReplaceEmptyLists, but that does not seem to be working. Would appreciate any help. [image]

I can’t find any illustration for List.Clean with boolean set to true. Please send a screenshot if you used it successfully so we can reuse it as a reference for similar issues.