/// <summary>
/// Ensure that the IP address range entered is valid
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void bnOK_Click(object sender, EventArgs e)
{
// If either address has not been specified then this is not valid
if ((startIPAddress.Text == "") || (endIPAddress.Text == ""))
{
MessageBox.Show("You must specify both a start and end IP address", "Range Error");
startIPAddress.Focus();
DialogResult = DialogResult.None;
}
else if (IPAddressComparer.IsGreater(startIPAddress.Text, endIPAddress.Text))
{
MessageBox.Show("The starting IP Address must be less than the ending address", "Range Error");
startIPAddress.Focus();
DialogResult = DialogResult.None;
}
else
{
// OK save the values
_lower = startIPAddress.Text;
_upper = endIPAddress.Text;
}
}