Element Catergory report "null"

I don’t know how node “Element Catergory” report noll. Some one can help me? Thank you!

@toantrunggtvt You need to input an element into that node, currently you’re feeding an element category.
Based on what I can tell you’re trying to do, delete that second Element.Category node and feed in the Select Elements output into the List.GetItemAtIndex list input.

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Like that Sir? But not ok. :frowning:

Thank you Sir!!! I can do it!


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Perfect, I was too late on the reply. Glad I could help! Remember to mark the solution with the checkbox to indicate this post is solved

Thank you Sir!!! Have a nice day!!! Good luck! Thank you so much!!!