Use C # to get the domain name through the URL

Recently, when you write a gadget, you need to get the domain name through the URL, do not know how the URI only get the method of host name and did not get the domain name method, so only to realize one, but I feel this method is more abnormal, I hope to come out and discuss with you, to see if there is a better way?

For example: http://www.google.co.uk, should return google.co.uk,http://www.test.googlepages.com, should return googlepages.com

My program is as follows, take out the discussion, write more mentally retarded, must know all the domain name suffix in advance.

Please tell me the good way:

private string getdomain (string url)
{
string host;
URI Uri; 　　　　　　　　
Try
{

uri = new uri (URL);
Host = URI. Host + "";
}
Catch
{
return "";
}

string[] bereplacedstrs = new string[] {. com.cn ",". edu.cn ",". net.cn ",". org.cn ",". co.jp ",". gov.cn ", ". co.uk", "ac.cn", ". edu", ". TV", ". Info", ". com", ". AC", ". Ag", ". Am", ". At", ". is", ". Biz", ". Bz", ". CC", ". cn", ". com", ". de", ". Es", ". eu", ". FM", ". GS", ". HK,". In ",". Info ",". Io ",". It ",". JP ",". La ",". MD ",". Ms ",". Name ",". Net ",". NL ",". Nu ",". org ",". Pl ",". Ru ",". Sc ",". Se ",". sg ",". Sh ",". TC ",". tk ",". TV ",". TW ",". US ",". Co ",". UK ",". VC ",". VG ", ". ws", ". Il", ". Li", ". NZ"};

foreach (String onebereplacedstr in Bereplacedstrs)
{
String bereplacedstr = Onebere Placedstr + "";
if (host. 　　　　IndexOf (BEREPLACEDSTR)!=-1)
{
　　　　　　Host = host. Replace (Bereplacedstr, String. Empty);
break;
}
}

int dotindex = host. LastIndexOf ("."); The
host = URI. Host.substring (Dotindex + 1);
return host;
}

Thank you, sir!

Http://www.cnblogs.com/csharphack/archive/2006/09/26/get_domain_from_url.html