Close();
        }

        private void textBox1_Validating(object sender, CancelEventArgs e)
        {
            try
            {
                IPAddress.Parse(textBox1.Text);
            }
            catch (Exception)
            {
                e.Cancel = true;
            }
        }

        private void textBox2_Validating(object sender, CancelEventArgs e)
        {
            try
            {
                int.Parse(textBox2.Text);
            }
            catch (Exception)
            {
                e.Cancel = true;
            }
        }

        private void textBox3_Validating(object sender, CancelEventArgs e)
        {
            try
            {
                short.Parse(textBox3.Text);
            }
            catch (Exception)
            {
                e.Cancel = true;
            }
        }

        internal void RemoveClipboardHandler()
        {