I have the 2 collections:
IEnumerable<Element> allElements
List<ElementId> someElements,
What is a concise way of doing the following together:
[1] Verifying that all elements in someElements
exist in allElements
, return quickly when condition fails.
and
[2] Obtain a list of Element
objects that List<ElementId> someElements
maps to.
Every Element
object has an ElementId
Thank you.