Visual C#: Linear Sorting Algorithm

SelectionSorting.cs

private static int[] SelectionSort(int[] items)
{
    // Loop through each element
    for (int i = 0; i < items.Length - 1; i++)
        // Loop through each element afterwards
        for (int j = i + 1; j < items.Length; j++)
            // Check if the first item is bigger than the second item
            if (items[i] > items[j])
            {
                // If it is, swap the two values
                int tmp = items[i];
                items[i] = items[j];
                items[j] = tmp;
            }

    return items;
}