public void GetIPAddress()

{

string resultIP = string.Empty;

System.Net.IPAddress[] ips = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()).AddressList;

foreach (System.Net.IPAddress ip in ips)

{

if (IsCorrentIP(ip.ToString()))

{

resultIP = ip.ToString();

break;

}

}

}

private bool IsCorrentIP(string ip)

{

string pattrn = @"(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])";

if (System.Text.RegularExpressions.Regex.IsMatch(ip, pattrn))

{

return true;

}

else

{

return false;

}

}