private void btnRestoreDefaults_Click(object sender, EventArgs e)
{
_dnsProviders.Clear();
_dnsProviders.AddRange(DnsProvider.GetDefaultProviders());
RefreshDnsProvidersList();
ClearForm();
}
private void LoadConfig()
{
try
{
using (FileStream fS = new FileStream(_configFile, FileMode.Open, FileAccess.Read))
{
BinaryReader bR = new BinaryReader(fS);
if (Encoding.ASCII.GetString(bR.ReadBytes(2)) != "DT")
{
throw new InvalidDataException("Invalid DNS Server System Tray App config file format.");
}
switch (bR.ReadByte())
{
case 1:
int count = bR.ReadInt32();
_dnsProviders.Clear();
for (int i = 0; i < count; i++)
{
_dnsProviders.Add(new DnsProvider(bR));
}
_dnsProviders.Sort();
break;
default:
throw new NotSupportedException("DNS Server System Tray App config file format is not supported.");
}
}
}
catch (FileNotFoundException)
{
_dnsProviders.Clear();
_dnsProviders.AddRange(DnsProvider.GetDefaultProviders());
_dnsProviders.Sort();
}
catch (Exception ex)
{
MessageBox.Show("Error occured while loading config file. " + ex.Message, "Error - " + Resources.ServiceName, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}