private void ProcessTestAnswersOfDnsAsync(IAsyncResult ar)
{
DnsRequest dnsRequest = (DnsRequest)ar.AsyncState;
IPAddress resolvedIP;
try
{
IPAddress[] ips = DnsClient.EndLookupHost(ar);
resolvedIP = ips[0];
this.dtr(dnsRequest.Url + ";" + resolvedIP.ToString() + ";" + dnsRequest.DnsServerIP[0].ToString());
}
catch
{
this.dtr(dnsRequest.Url + ";" + dnsRequest.DnsServerIP[0].ToString());
}
}