Parameters

array

The one-dimensional Array to reverse.

index

The starting index of the section to reverse.

length

The number of elements in the section to reverse.

Exceptions

Type	Reason
ArgumentNullException	array is null.
RankException	array is multidimensional.
ArgumentOutOfRangeException	index < array.GetLowerBound(0). length < 0.
ArgumentException	index and length do not specify a valid range in array (i.e. index + length > array.GetLowerBound(0) + array.Length).

Remarks

After a call to this method, the element at myArray[i], where i is any index in the array, moves to myArray[j], where j equals (myArray.Length + myArray.GetLowerBound(0)) - (i - myArray.GetLowerBound(0)) - 1.

The Array.Reverse(Array) method can be used to reverse a jagged array.

This method is an O(n) operation, where n is length.

Example

using System;
public class ArrayReverseExample {
   public static void Main() {
      string[] strAry = { "one", "two", "three" };
      Console.Write( "The elements of the array are:");
      foreach( string str in strAry )
         Console.Write( " {0}", str );
      Array.Reverse( strAry );
      Console.WriteLine();
      Console.WriteLine( "After reversing the array," );
      Console.Write( "the elements of the array are:");
      foreach( string str in strAry )
         Console.Write( " {0}", str );
   }
}

Requirements