private void btn_connect_disconnect_Click(object sender, EventArgs e)
{
try
{
Button btn = sender as Button;
string NIC = DNSUtil.GetActiveEthernetOrWifiNetworkInterface().Name;
switch (btn.Text)
{
case "Connect":
DNSUtil.SetDNS(NIC, DNS1 + "," + DNS2);
break;
case "Disconnect":
DNSUtil.SetDNS(NIC, null);
break;
}
var dnsS = DNSUtil.GetDnsAdresses();
var dnsStrings = dnsS.Select(x => x.ToString().ToString()).ToList();
if (dnsStrings.Contains(DNS1) || dnsStrings.Contains(DNS2))
{
btn_connect_disconnect.Text = "Disconnect";
}
else
{
btn_connect_disconnect.Text = "Connect";
}
}
catch
{
MessageBox.Show("No Internet Connection!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void Form1_Load(object sender, EventArgs e)
{
try
{
var dnsS = DNSUtil.GetDnsAdresses();
var dnsStrings = dnsS.Select(x => x.ToString().ToString()).ToList();
if (dnsStrings.Contains(DNS1) || dnsStrings.Contains(DNS2))
{
btn_connect_disconnect.Text = "Disconnect";
}
else
{
btn_connect_disconnect.Text = "Connect";
}
}
catch
{
MessageBox.Show("No Internet Connection!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
