You do not specify what type BlockedList
is, so I will assume it is something that derives from IList
(if meant to say String
where you wrote BlockList
then it would be a string array which derives from IList
).
HashSet
has a constructor that takes an IEnumerable
, so you need merely pass the list into this constructor, as IList
derives from IEnumerable
.
var set = new HashSet(BlockedList);
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