i have 2 Lists, one consists of a List of Ducts, and the Second one consists of their nearest Walls. As you can see in the immage i have 10 ducts and the 10 Walls that are closest to them, which are only 2 different Walls. Now i want to create 2 Lists that group each duct to their Wall so the should look like this:
Any idea how to accomplish that?
GroupByKey is the main piece you’re missing. You’ll have to get some sort of identifier (like ID) to use as your key as I don’t believe it can use elements. You’ll also probably need UniqueItems from your list of Walls to create your new sublists after the Ducts are grouped.
yeah that’s what i’ve figured, i got this
but i don’t know ho to group the walls into the duct lists now
Really close. List.Join doesn’t use and lacing or list levels. It’s a straight “combine input lists”. Use AddItemToFront with list levels instead.
Worked perfectly thanks so much