Use Array.Sort to sort object array : Array Sort « Data Structure « C# / CSharp Tutorial

using System;
using System.Collections.Generic;
using System.Text;

class MyClass : IComparable                    
{
   public int TheValue;

   public int CompareTo(object obj)            
   {
      MyClass mc = (MyClass)obj;
      
      if (this.TheValue < mc.TheValue) 
         return -1;
      
      if (this.TheValue > mc.TheValue) 
         return 1;
      
      return 0;
   }
}

class MainClass
{
   static void Main()
   {
      MyClass[] objectArray = new MyClass[5];         
      for (int i = 0; i < 5; i++)              
      {
         objectArray[i] = new MyClass();
         objectArray[i].TheValue = 100 - i;
      }

      foreach (MyClass i in objectArray)
         Console.Write("{0} ", i.TheValue);

      Array.Sort(objectArray);                        

      foreach (MyClass i in objectArray)
         Console.Write("{0} ", i.TheValue);
   }
}

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11.18.Array Sort
	11.18.1.	Sort an array
	11.18.2.	Sort an array and search for a value
	11.18.3.	Display the contents of the sorted array
	11.18.4.	Use System.Array.Sort() to sort an int array
	11.18.5.	Implementing IComparable and sort by Array.Sort
	11.18.6.	Use Array.Sort to sort object array
	11.18.7.	Use the Sort() method to sort the elements in an int array