Forum Discussion

rancan's avatar
rancan
Occasional Contributor
5 years ago

Undefined SerialPort

Hi,    I am a beginner in both TestComplete and Scripting (Java).    I am trying to send sequence and read the com port of a device using TestComplete.  I found the code on this page: https://su...
java
Scripting
serial-port
  • Wamboo's avatar
    Wamboo
    5 years ago

    Welcome to TestComplete world!:)

     

    "I am a beginner in both TestComplete and Scripting (Java). "

     

    First, this is JavaScript, not Java ;)

     

    "'Cannot read property 'SerialPort' of undefined."

     

    Did You try to do steps from the documentation? You can find there this thread.

     

    "The System.IO.Ports namespace is included in the system.dll assembly. This assembly is registered in the Global Assembly Cache (GAC). In order to use the namespace in scripts, register this assembly in the CLR Bridge Options page of the Project Properties editor:"

     

    Let me know if this helps You.

rancan's avatar
rancan
Occasional Contributor

Hi, 

 

Thank you for your help :) 

 

Yes, I have followed the steps as instructed, and I have selected the components (System.Data.Linq, System.Data, System.IO) on GAC. However, I couldn't find 'System.IO.Ports' on the list, am I choosing the wrong components? 

 

And when I ran it, it still showed the same error message. Thank you. 

 

Edit: Sorry, my mistake. After checking it again and I enabled the System component on GAC, it ran but showing 'No Data' for the results (it might be because of the external device that I connected, I am unsure)

 

Thank you for your help.

rancan's avatar
rancan
Occasional Contributor
5 years ago

Hi, 

 

Once again thanks, it works now! 

But, I think there is something wrong with my code, do you mind helping me..

 

Here's the code:

function Test ()
{
   var Port, s;
   
    Port = dotNET.System_IO_Ports.SerialPort.zctor_4 ("COM3", 115200);
    Port.Open ();
    
    // Writing data to the port
    Port.Write ("1A 03 06 88");
    // Waiting for response
    aqUtils.Delay (1000);
    // Processing response
    if (Port.BytesToRead != 0)
    {
       s = Port.ReadExisting; 
       Log.Message (s);
     }
     else
       Log.Warning("No Data");

     Port.Close();
}

It ran successfully on TestComplete, but the response is empty. It just gave me blank result. 

 

I would really appreciate it if you could help me with this. Thank you.