ASP.NET 根据 UserAgent 获取浏览器的类型和版本

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//using System.Text.RegularExpressions;

public string GetBrowserName(string userAgent, out string browserName, out string ver)

{

    string fullBrowserName = string.Empty;

    browserName = string.Empty;

    ver = string.Empty;

    // IE

    string regexStr = @"msie (?<ver>[\d.]+)";

    Regex r = new Regex(regexStr, RegexOptions.IgnoreCase);

    Match m = r.Match(userAgent);

    if (m.Success)

    {

        browserName = "IE";

        ver = m.Groups["ver"].Value;

        fullBrowserName = string.Format("{0} {1}", browserName, ver);

        return fullBrowserName;

    }

    // Firefox

    regexStr = @"firefox\/([\d.]+)";

    r = new Regex(regexStr, RegexOptions.IgnoreCase);

    m = r.Match(userAgent);

    if (m.Success)

    {

        browserName = "IE";

        ver = m.Groups["ver"].Value;

        fullBrowserName = string.Format("{0} {1}", browserName, ver);

        return fullBrowserName;

    }

    // Chrome

    regexStr = @"chrome\/([\d.]+)";

    r = new Regex(regexStr, RegexOptions.IgnoreCase);

    m = r.Match(userAgent);

    if (m.Success)

    {

        browserName = "IE";

        ver = m.Groups["ver"].Value;

        fullBrowserName = string.Format("{0} {1}", browserName, ver);

        return fullBrowserName;

    }

    // Opera

    regexStr = @"opera.([\d.]+)";

    r = new Regex(regexStr, RegexOptions.IgnoreCase);

    m = r.Match(userAgent);

    if (m.Success)

    {

        browserName = "IE";

        ver = m.Groups["ver"].Value;

        fullBrowserName = string.Format("{0} {1}", browserName, ver);

        return fullBrowserName;

    }

    // Safari

    regexStr = @"version\/([\d.]+).*safari";

    r = new Regex(regexStr, RegexOptions.IgnoreCase);

    m = r.Match(userAgent);

    if (m.Success)

    {

        browserName = "IE";

        ver = m.Groups["ver"].Value;

        fullBrowserName = string.Format("{0} {1}", browserName, ver);

        return fullBrowserName;

    }

    return fullBrowserName;

}