In .Net Framework reversing array elements can be done by using Reverse method on Array type. This code snippet shows you how this method can be used to reverse an array.

// Declare an array with 10 elements
int[] numbers = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

// Output elements in original order
for (int i = 0; i < numbers.Length; i++)
{
  Console.Write(" {0}", numbers[i]);
}
Console.WriteLine();

// Reverse the array
Array.Reverse(numbers);

// Output elements with changed order
for (int i = 0; i < numbers.Length; i++)
{
  Console.Write(" {0}", numbers[i]);
}

Console.ReadKey();

Here is the output.

Array.Reverse method also provides an overload which can be used to reverse elements at a given indexes. For example we want to reverse elements 3, 4 and 5 but leave others intact. This can be achieved using the following code snippet.

// Declare an array with 10 elements
int[] numbers = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

// Output elements in original order
for (int i = 0; i < numbers.Length; i++)
{
   Console.Write(" {0}", numbers[i]);
}
Console.WriteLine();

// Reverse numbers 3 , 4 and 5
Array.Reverse(numbers, 2, 3);

// Output elements with changed order
for (int i = 0; i < numbers.Length; i++)
{
  Console.Write(" {0}", numbers[i]);
}

Console.ReadKey();

And the output is.