Fastest way to detect duplicate numbers on array vb.net 2005

Question

I have this project that let user inputs 5 different numbers from 1 to 50. But I want to validate it before saving to DB that i will be 5 unique numbers. What\'s the best an

Answer 1

Here's an alternate solution, not sure how it compares, efficiency wise, to the other solutions, but it seems to work (uses LINQ).

Dim numbers As List = getListOfNumbers()
Dim allUnique As Boolean = numbers.Distinct().Count() = numbers.Count()