Which collection for storing unique strings?

Question

I'm looking for a collection just like Dictionary(OF Key, Value) but I don't actually need a key and value. Key itself is enough. So something like Collection(Key). It shouldn't accept duplicate keys.

I've looked up couple of collections in .NET Framework but couldn't find what I want. Currently I'm abusing Dictionary(OF String, String) and setting Value as Nothing all the time.

Shall I just continue abusing Dictionary(OF T,T)?

score 25 · Accepted Answer · answered Mar 28 '09 at 14:45

25

I think what you want is a HashSet<T>.

answered Mar 28 '09 at 14:45

tvanfosson

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score 2 · Answer 2 · answered Mar 28 '09 at 14:45

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HashSet<T> would work for this. It lets you store a unique set of values, without "abusing" a dictionary.

answered Mar 28 '09 at 14:45

Reed Copsey

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score 2 · Answer 3 · edited May 23 '17 at 11:51

2

List would be better than Collection as noted in this semi-duplicate question.

A hashset in 3.5 would be better still. What version of .net are you using?

edited May 23 '17 at 11:51

Community

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answered Mar 28 '09 at 14:45

Michael Haren

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Which collection for storing unique strings?

3 Answers3

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