permutation of array items

Question

How do I go about getting a combination of an array of strings of count 2? Ie.

List myString = {\"a\", \"b\", \"c\", \"d\", \"f\"};
         


        

Answer 1

Not using LINQ

List myString = {"a", "b", "c", "d", "f"};
List result = new List ();
for (int i = 0; i < myString.Count; i++)
{
    for (int j = 0; j < myString.Count; j++)
    {
        if (i == j)
            continue;
        result.Add(myString[i] + myString[j]);
    }
}