Project Description"What is my IP?", is presumably the most fundamental question for every web surfer. Simple feature returning IP address could enhance the functionality of any ASP.NET web site, contributing to better user experience.
Simple feature could be added to any ASP.NET page returning the IP address.
Working DEMO is available at:
http://www.webinfocentral.com/TermsOfUse.aspx (refer to the button control “WHAT IS MY IP”)
ADDITIONAL READING:
- How to select web browser and check its capabilities
- Computer mouse triple-click is a convenient feature
- Search engine optimization and online concordance calculator
Project contains following files:
1. GetMyIP.cs (class module written in C# to be placed in App_Code directory)
2. Default.aspx (sample web page contains a button control to pop-up JavaScript message, showing IP address)
3. WhatIsMyIP_screenshot.png (sample screenshot)
The code module (1) is rather straightforward: it's using HttpContext object to return IP address:
//******************************************************************************
// Module : GetMyIP.cs
// Author : Alexander Bell
// Copyright : 2007-2009 Infosoft International Inc
// Description : Get my IP address
//******************************************************************************
// DISCLAIMER: This Application is provide on AS IS basis without any warranty
//******************************************************************************
using System;
using System.Web;
public static class MyIP {
public static string Address {
get {
try {
if (HttpContext.Current == null) return String.Empty;
return HttpContext.Current.Request.UserHostAddress;
}
catch { return String.Empty; }
}
}
}
Sample Web Page contains single Button1 server control with "onclick" event added:
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>WHAT_IS_MY_IP | Infosoft International Inc</title>
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
Button1.Attributes.Add("onclick",
"javascript:alert('Your IP address: " + MyIP.Address + "')");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:Button ID="Button1"
runat="server"
Text="WHAT IS MY IP"
UseSubmitBehavior="False" />
</form>
</body>
</html>
Sample screenshot showing IP address follows:
Fig.1. Sample screenshot
ADDITIONAL ONLINE RESOURCES:
- Rich internet applications, part 1: embedding YouTube™ video player into web page
- Rich internet applications, part 2: Silverlight™ media player
- Rich internet applications, part 3: HTML 5 video player
- How to archive and back-up your online content
- How to use online geocoders and interactive maps
- Search engine optimization and online concordance calculator
| Internet | TCP/IP | IP | .NET | ASP.NET | JavaScript | C# | HTTP | HttpContext | UserHostAddress |