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Detect the browser using ASP.NET and C#

Agus Kurniawan

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19 Dec 2001

A Simple ASP.NET program for detecting browser type that clients use

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This article intends to show how to detect the browser on the clients side. I use the HttpBrowserCapabilities class using the C# language. The HttpBrowserCapabilities class gives information on the capabilities of the browser that is running on the client. It needs the System.Web namespace. HttpBrowserCapabilities properties are accessible through the Browser property of ASP.NET's intrinsic Request object. Here's the HttpBrowserCapabilities members:

Properties	Meaning
ActiveXControls	Gets a value indicating whether the client browser supports ActiveX controls.
AOL	Gets a value indicating whether the client is an America Online (AOL) browser.
BackgroundSounds	Gets a value indicating whether the client browser supports background sounds.
Beta	Gets a value indicating whether the browser is a beta release.
Browser	Gets the browser string (if any) that was transmitted in the User-Agent header.
CDF	Gets a value indicating whether the client browser supports Channel Definition Format (CDF) for webcasting.
ClrVersion	[To be supplied.]
Cookies	Gets a value indicating whether the client browser supports cookies.
Crawler	Gets a value indicating whether the client browser is a Web crawler search engine.
EcmaScriptVersion	Gets the version number of ECMA script that the client browser supports.
Frames	Gets a value indicating whether the client browser supports HTML frames.
Item (inherited from HttpCapabilitiesBase)	Allows access to individual dictionary values. In C#, this property is the indexer for the HttpBrowserCapabilities class.
JavaApplets	Gets a value indicating whether the client browser supports Java applets.
JavaScript	Gets a value indicating whether the client browser supports JavaScript.
MajorVersion	Gets the major (that is, integer) version number of the client browser.
MinorVersion	Gets the minor (that is, decimal) version number of the client browser.
MSDomVersion	Gets the version of Microsoft XML Document Object Model (DOM) that the client browser supports.
Platform	Gets the name of the platform that the client uses.
Tables	Gets a value indicating whether the client browser supports HTML tables.
Type	Gets the name and major (that is, integer) version number of the client browser.
VBScript	Gets a value indicating whether the client browser supports VBScript.
Version	Gets the full (integer and decimal) version number of the client browser.
W3CDomVersion	Gets the version of the World Wide Web Consortium (W3C) XML Document Object Model (DOM) that the client browser supports.
Win16	Gets a value indicating whether the client is a Win16-based machine.
Win32	Gets a value indicating whether the client is a Win32-based machine.

For more information about HttpBrowserCapabilities class, click here

This code lines for ASP.NET using C# language:

 <%@ Page Language="C#" %>
<html>

 <head>
 <title>Browser Information</title>
 </head>

 <body>

 <p><font face="Arial" size="3"><b>Browser Information</b></font></p>
 <hr align="left" width="30%" color="#04ACB5">
 <div align="left">
  <table border="0" width="44%">
    <tr>
      <td width="34%"><font face="Verdana" size="2">Browser Type</font></td>
      <td width="4%"><font face="Verdana" size="2">:</font></td>
      <td width="66%"><font face="Verdana" size="2"><%= Request.Browser.Browser %></font></td>
    </tr>
    <tr>
      <td width="34%"><font face="Verdana" size="2">Version</font></td>
      <td width="4%"><font face="Verdana" size="2">:</font></td>
      <td width="66%"><font face="Verdana" size="2"><%= Request.Browser.Version %></font></td>
    </tr>
    <tr>
      <td width="34%"><font face="Verdana" size="2">ActiveX Control</font></td>
      <td width="4%"><font face="Verdana" size="2">:</font></td>
      <td width="66%"><font face="Verdana" size="2"><%= Request.Browser.ActiveXControls %></font></td>
    </tr>
    <tr>
      <td width="34%"><font face="Verdana" size="2">Java Script</font></td>
      <td width="4%"><font face="Verdana" size="2">:</font></td>
      <td width="66%"><font face="Verdana" size="2"><%= Request.Browser.JavaScript %></font></td>
    </tr>
    <tr>
      <td width="34%"><font face="Verdana" size="2">Java Applet</font></td>
      <td width="4%"><font face="Verdana" size="2">:</font></td>
      <td width="66%"><font face="Verdana" size="2"><%= Request.Browser.JavaApplets %></font></td>
    </tr>
    <tr>
      <td width="34%"><font face="Verdana" size="2">VB Script</font></td>
      <td width="4%"><font face="Verdana" size="2">:</font></td>
      <td width="66%"><font face="Verdana" size="2"><%= Request.Browser.VBScript %></font></td>
    </tr>
  </table>
 </div>
 <hr align="left" width="30%" color="#04ACB5">
 <p><font face="Times New Roman" size="2" color="#000000">Copyright &copy 2001 <a href="mailto:agusasia@yahoo.com"> Agus Kurniawan</a></font></p>

 </body>

 </html>

Save this file as detectbrowser.aspx and put on your IIS directory. Run it !!.

Reference

Microsoft Studio.NET Documentation

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