I've tried doing:

public delegate void SerialDataReceivedEventHandler(object sender, SerialDataReceivedEventArgs e);

.
.
.
.

public void COM_DATA (object sender, SerialDataReceivedEventArgs e)
{
label3.Text = "asdsad";
textBox1.Text = "asdsadasdasf";
}

I'm trying to start small. I just want at this point any time it receives data to do something. In this case change some text on a form. Thoughts? Thanks,

D