C# List随机排列数组元素，随机打乱顺序

/// <summary>
/// 随机排列数组元素
/// </summary>
/// <param name="myList"></param>
/// <returns></returns>
private List<int> ListRandom(List<int> myList)
{ 
    Random ran = new Random();            
    int index = 0;
    int temp = 0;
    for (int i = 0; i < myList.Count; i++)
    {
         index = ran.Next(0, myList.Count-1);
        if (index != i)
        {
            temp = myList[i];
            myList[i] = myList[index];
            myList[index] = temp;
        }
    }
    return myList;
}