检测通过什么平台打开网站

string strUserAgent = Request.UserAgent.ToString().ToLower();
if (strUserAgent != null)
{

if (Request.Browser.IsMobileDevice == true || strUserAgent.Contains("iphone") ||
strUserAgent.Contains("blackberry") || strUserAgent.Contains("mobile") ||
strUserAgent.Contains("windows ce") || strUserAgent.Contains("opera mini") ||
strUserAgent.Contains("palm"))
{
deviceType = "移动设备";
}
else
deviceType = "PC设备";
}