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GlennP
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Using the DataReceved Event on more than one Serial Port....

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Hi All,

I have an issue I want to use the serial ports DataRecieved Event to over 6 six serial ports,
I in the past only have used it on one. The procedure of defining and attaching them I know what I'm not sure of is 

public static SerialDataREcievedEventHandler SerialDataReceivedEventHandlerATE = 
new SerialDataReceivedEventHandler(ATEComPort.DataRecieved);


ATEComPort.DataRecieved += SerialDataReceivedEventHandlerATE;


is fine but how do I use 

internal void DataReceived(object sender, SerialDataReceivedEventArgs e)
{
//blah 
}

can it be 
internal void DataReceivedATE(object sender, SerialDataReceivedEventArgs e)
{
//blah 
} 
internal void DataReceivedDUT(object sender, SerialDataReceivedEventArgs e)
{
//blah 
}

for all six device? or am I loosing the plot!

Glenn

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  • asked one year ago
  • edited one year ago
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last answered one year ago

1 answers

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If you have six serial ports and you want each one to have its own DataReceived eventhandler, then you'd typically proceed like this:

ATEComPort.DataRecieved += DataReceivedATE;
DUTComPort.DataReceived += DataReceivedDUT;
// and so on for the other four

internal void DataReceivedATE(object sender, SerialDataReceivedEventArgs e)
{
    // blah
}

internal void DataReceivedDUT(object sender, SerialDataReceivedEventArgs e)
{
    // blah
}

  • answered one year ago by:

    vulpes
    17279
  • edited one year ago
(x)
GlennP
329

No, I was trying to get seperate handlers for all six. When you say issues with the DataReceived event it seems like I might have experienced them before. Like the PC slowing to crawling speed?? Glenn

(x)
vulpes
17279

OK, I've edited my answer to do it on that basis. The main issue with the DataReceived eventhandler is that you can't be sure that it will fire for each byte received and so need to be alert to that when reading the buffer. I can't really think of any reason why it would slow down the UI or the PC itself, given that it's fired on a separate thread.

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