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Asked: 2026-05-24T23:17:57+00:00

I need a C# collection from which I can as quickly as possible pick

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I need a C# collection from which I can as quickly as possible pick out a random element, but also add new elements to. It is for a scrabble bag of letter blocks. Which one should I use?

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  1. Editorial Team

    Anything implementing IList (or, more probably IList<T>) as these can be referenced by index. Its very easy to pick a random number in the range 0 < n < list.Count-1 and get that item from the list.

    eg/

    // assumes 'random' is an instance of System.Random
myRandomElement = myList[random.Next(0,myList.Count-1)]
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