private void DecimalIpAddressTextBox_KeyUp(object sender, KeyEventArgs e)
{
string RawInput;
RawInput = DecimalIpAddressTextBox.Text.Trim();
// CIDR regex
string pattern = @"((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)";
Regex rgx = new Regex(pattern, RegexOptions.IgnoreCase);
if (rgx.IsMatch(RawInput) == true)
{
try
{
IpAddress Address = new IpAddress(RawInput);
BinaryIpAddressTextBox.Text = Address.ToBinaryString();
}
catch (Exception)
{
BinaryIpAddressTextBox.Text = "Invalid Address";
}
}
else
{
BinaryIpAddressTextBox.Text = "";
}
}
