<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
Untitled Page
File: Default.aspx.cs
using System;
using System.Collections;
using System.Collections.Generic;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Person scott = new Person("A", "D");
Person bill = new Person("B", "E");
Person srini = new Person("C", "F");
List people = new List();
people.Add(scott);
people.Add(bill);
people.Add(srini);
foreach (Person p in people)
{
Response.Write(p.FullName + "
");
}
for (int i = 0; i < people.Count; i++)
{
Response.Write(people[i].FullName + "
");
}
}
}
public class Person : IComparable
{
string FirstName;
string LastName;
public Person(string first, string last)
{
FirstName = first;
LastName = last;
}
public string FullName
{
get
{
return FirstName + " " + LastName;
}
}
int IComparable.CompareTo(object obj)
{
Person p2 = obj as Person;
if (p2 == null) throw new ArgumentException("Object is not a Person!");
int lastNameResult = this.LastName.CompareTo(p2.LastName);
if (lastNameResult == 0)
{
int firstNameResult = this.FirstName.CompareTo(p2.FirstName);
return firstNameResult;
}
else
{
return lastNameResult;
}
}
}