I mentioned that all array objects in C# are implicitly objects of the System.Array class. System.Array contains useful methods and properties which you can use. The Length property,  discussed earlier, is actually inherited from System.Array. Other methods can be used for creating, manipulating, searching, and sorting arrays.
I shall introduce the following static methods in System.Array which can be useful for 1D arrays:
public static void Reverse (Array array)
public static void Sort (Array array)
public static int IndexOf (Array array, Object value)
Check out the API documentation ...