private void ConnectButton_Click(object sender, EventArgs e)
{
PortSettings();
try
{
//sp.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
//open serial port
sp.Open();
//set read time out to 500 ms
// sp.ReadTimeout = 100;
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
}
if (sp.IsOpen)
{
MessageBox.Show("serial port has open");
connectSp = true;
ConnectButton.Hide();
DisconnectButton.Show();
RefreshButton.Hide();
}
else
{
MessageBox.Show("faild to open serial port");
connectSp = false;
ConnectButton.Show();
DisconnectButton.Hide();
RefreshButton.Show();
}
}
private void DisconnectButton_Click(object sender, EventArgs e)
{
try
{
connectSp = false;
sp.Close();
ConnectButton.Show();
DisconnectButton.Hide();
RefreshButton.Show();
}
catch (System.Exception ex)
{
connectSp = true;
MessageBox.Show("faild to close serial port");
ConnectButton.Hide();
DisconnectButton.Show();
RefreshButton.Hide();
}
}