public void Close()
 {
     ImitatorSer.CloseSer(ImitatorPortParam);
     connectBtn.Enabled = true;
     closeBtn.Enabled   = false;
     readTextBox.Clear();
     messageTextBox.Clear();
     sendButton.Enabled = false;
 }
 private void button8_Click(object sender, EventArgs e)
 {
     DcuSer.CloseSer(DcuPortParam);
     connectDcuButton.Enabled = true;
     closeDcuButton.Enabled   = false;
     dcuRichTextBox.Clear();
     DcuTextBox.Clear();
     dcuSendButton.Enabled = false;
 }
 private void CloseButtonClick(object sender, EventArgs e)
 {
     ImitatorSer.CloseSer(ImitatorPortParam);
     connectBtn.Enabled = true;
     closeBtn.Enabled   = false;
     readTextBox.Clear();
     messageTextBox.Clear();
     sendButton.Enabled = false;
 }