c# - Linq List comparing and exclusion -


I have two IQueryable & lt; & Gt; is the list. Say that one class is full of objects bottle and the other type is cup .

There is a code in both classes, which is DrinkID .

How do I list my bottle and find all the items in the cup list DrinkID this bottle Not in the list?

I am searching for something like this: 

  var bottles = _context.AllBottles; Var cup = _context.AllCups.Where (cup => cup.DrinkID not in bottles. Drink id);

I am using Linq for the unit 

  cup Where (c => Bottles. Any (b => gt; drinkID == b.DrinkID))

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