The best browser detection solution in ASP.NET 4.0

I googled this topic and I came across with three different ways to configure browser capabilities: browscap.ini, browserCaps element in web.config and .browser files in App_Browsers. I thought .browser files is the latest way, but I don't seem to find up-to-date files. But I found quite fresh browscap.ini from http://browsers.garykeith.com/downloads.asp.

My first priority is to exclude common crawlers from the visitor stats. The second priority is to detect browser and os with correct versions (e.g. Opera 11 / Win7).

Are there any libraries I could use? Is browscap.ini still a valid way and is it possible to use it without access to system files? Wher开发者_如何学运维e can I find up-to-date .browser files?

more info : http://msdn.microsoft.com/en-us/library/3yekbd5b.aspx Have you checked this :

    System.Web.HttpBrowserCapabilities browser = Request.Browser;
    string s = "Browser Capabilities\n"
        + "Type = "                    + browser.Type + "\n"
        + "Name = "                    + browser.Browser + "\n"
        + "Version = "                 + browser.Version + "\n"
        + "Major Version = "           + browser.MajorVersion + "\n"
        + "Minor Version = "           + browser.MinorVersion + "\n"
        + "Platform = "                + browser.Platform + "\n"
        + "Is Beta = "                 + browser.Beta + "\n"
        + "Is Crawler = "              + browser.Crawler + "\n"
        + "Is AOL = "                  + browser.AOL + "\n"
        + "Is Win16 = "                + browser.Win16 + "\n"
        + "Is Win32 = "                + browser.Win32 + "\n"
        + "Supports Frames = "         + browser.Frames + "\n"
        + "Supports Tables = "         + browser.Tables + "\n"
        + "Supports Cookies = "        + browser.Cookies + "\n"
        + "Supports VBScript = "       + browser.VBScript + "\n"
        + "Supports JavaScript = "     + 
            browser.EcmaScriptVersion.ToString() + "\n"
        + "Supports Java Applets = "   + browser.JavaApplets + "\n"
        + "Supports ActiveX Controls = " + browser.ActiveXControls 
              + "\n"
        + "Supports JavaScript Version = " +
            browser["JavaScriptVersion"] + "\n";

    TextBox1.Text = s;

I found a user agent parser from http://user-agent-string.info/ and it seems to be good enough for my purposes.

Just so no one else goes down that dark path, be aware that even the jQuery team recommend that you DO NOT use jQuery.browser object:

"The $.browser property is deprecated in jQuery 1.3"

The best answer is feature detection, not browser detection! This is particularly true in the day where Firefox & Chrome are putting out releases ever few months and mobile browser use is growing. Use Modernizr (http://Modernizr.com) or an equivalent library to detect the features you are interested in.

So far I've used http://api.jquery.com/jQuery.browser/ for client side detection.