Is there a better way of calling LINQ Any + NOT All?

Question

I need to check if a sequence has any items satisfying some condition but at the same time NOT all items satisfying the same condition.

For example, for a sequence of 10

Answer 1

You could put your predicate in a variable so that you don't have to repeat the predicate twice:

Func myPredicate = item => item.SomeStatus == SomeConst;
if (mySequence.Any(myPredicate) && !mySequence.All(myPredicate))
    ...