how to detect a mobile phone in a web application [closed]

Answer 1

Use httpRequest.Browser.IsMobileDevice in Session_Start

void Session_Start(object sender, EventArgs e)
{
    // Redirect mobile users to the mobile home page
    HttpRequest httpRequest = HttpContext.Current.Request;
    if (httpRequest.Browser.IsMobileDevice)
    {
        string path = httpRequest.Url.PathAndQuery;
        bool isOnMobilePage = path.StartsWith("/Mobile/", 
                               StringComparison.OrdinalIgnoreCase);
        if (!isOnMobilePage)
        {
            string redirectTo = "~/Mobile/";

            HttpContext.Current.Response.Redirect(redirectTo);
        }
    }
}

Answer 2

You need to check for User Agent.

Like... http://www.developershome.com/wap/detection/detection.asp?page=userAgentHeader