Remove items from IEnumerable

Question

I have 2 IEnumerable collections.

IEnumerable objectsToExcept 

and

IEnumerable allObjects.
         


        

Answer 1

There is no Remove method on IEnumerable, because it is not meant to be modifiable.

The Except method doesn't modify the original collection: it returns a new collection that doesn't contain the excluded items:

var notExcluded = allObjects.Except(objectsToExcept);

See Except on MSDN.