Insert Duplicate into Hashset

[sharma ravi21]

Hello Every one, how can i insert duplicate value in HashSet

[Luc Pattyn]

You can't, by definition: The HashSet<(Of <(T>)>) class provides high performance set operations. A set is a collection that contains no duplicate elements, and whose elements are in no particular order. :omg:

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[PIEBALDconsult]

You can't. Would the negative of the value work for you? Or use a Dictionary with a count of how many of the item you have. Or a Dictionary with a List of the duplicate items.

[Lost User]

If you must insert duplicates, then you are using the wrong type. Use a type that allows duplicates, a List for example.

[Dean Oliver]

Check this url to help decipher when to use what collection class. http://geekswithblogs.net/BlackRabbitCoder/archive/2011/06/16/c.net-fundamentals-choosing-the-right-collection-class.aspx[^]

[Montasser Ben Ouhida]

Hi, You can use the HashSet as: Hashset(Key(Type1), Value (List(Type2)))

Dictionary> dicElements;