public void RecoverDns()
{
ManagementClass mClass = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection mObjCol = mClass.GetInstances();
foreach (ManagementObject mObj in mObjCol)
{
if ((string)mObj["SettingID"] == Id)
{
ManagementBaseObject mboDNS = mObj.GetMethodParameters("SetDNSServerSearchOrder");
if (InitDynamicDns)
{
if (mboDNS != null)
{
mboDNS["DNSServerSearchOrder"] = null;
mObj.InvokeMethod("SetDNSServerSearchOrder", mboDNS, null);
}
}
else
{
if (mboDNS != null)
{
mboDNS["DNSServerSearchOrder"] = InitDnsServers.ToArray();
mObj.InvokeMethod("SetDNSServerSearchOrder", mboDNS, null);
}
}
return;
}
}
}
public void BackupDns()
{
InitDnsServers.Clear();
InitDynamicDns = IsDNSAuto();
if (!InitDynamicDns)
{
GetNetworkInterfaceById(Id).GetIPProperties().DnsAddresses.ToList().ForEach(dns =>
{
InitDnsServers.Add(dns.ToString());
});
}
}