How to retrieve the element dynamically using List generics

int[] arr = {5, 4, 2, 1, 7, 6 };

           int temp = 0;
           List<int> oInt = new List<int>();
           for (int write = 0; write < arr.Length; write++)
           {
               int sort = 0;
               for (; sort < arr.Length - 1; sort++)
               {
                   if (arr[sort] > arr[sort + 1])
                   {
                       temp = arr[sort + 1];
                       arr[sort + 1] = arr[sort];
                       arr[sort] = temp;
                   }
               }
               
           }
           oInt.AddRange(arr);
           foreach (int item in oInt)
           {
               Console.WriteLine(item);
           }

Thank you,
Govind

int[] arr = {5, 4, 2, 1, 7, 6 };
Array.Sort(arr);
  List<int> oInt = new List<int>();
oInt.AddRange(arr);
           foreach (int item in oInt)
           {
               Console.WriteLine(item);
           }

Thank you,
Govind