Check out example codes for "c# shuffle string array". It will help you in understanding the concepts better.

Code Example 1

public class Randomizer
{
    public static void Randomize<T>(T[] items)
    {
        Random rand = new Random();

        // For each spot in the array, pick
        // a random item to swap into that spot.
        for (int i = 0; i < items.Length - 1; i++)
        {
            int j = rand.Next(i, items.Length);
            T temp = items[i];
            items[i] = items[j];
            items[j] = temp;
        }
    }
}

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