declare a serial port

I am converting an application from VB6 to .NET

The VB6 code was:
Sub InitComPort(ComPort As Control, PortNum As Integer)
    ' -------------------------------
    ' setups the commport
    ' ------------------------------

    On Local Error Resume Next
    If ComPort.PortOpen = True Then
        ComPort.PortOpen = False
    End If
    ComPort.CommPort = PortNum
   
    ComPort.Settings = "9600,N,8,1"
   
    ComPort.PortOpen = True
   
    ComPort.RThreshold = 0
   
    SendingCmd = False
   
End Sub

How does the ComPort get defined in VB.NET.
Thanks,
Adam_930Asked:
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joekucera2002Commented:
You are looking for the SerialPort class in the System.IO.Ports namespace.

Please let me know if you need a code sample. Keep in mind that in VB6, the ComPort was a control that was placed on a form, and the SerialPort is a class meant to be used in code (preferably not in the UI layer).
0
Ramkisan JagtapLead DeveloperCommented:
Hello,

Check the following code:

Function ReceiveSerialData() As String
    ' Receive strings from a serial port.
    Dim returnStr As String = "" 

    Dim com1 As IO.Ports.SerialPort = Nothing
    Try
        com1 = My.Computer.Ports.OpenSerialPort("COM1")
        com1.ReadTimeout = 10000
        Do
            Dim Incoming As String = com1.ReadLine()
            If Incoming Is Nothing Then
                Exit Do
            Else
                returnStr &= Incoming & vbCrLf
            End If
        Loop
    Catch ex As TimeoutException
        returnStr = "Error: Serial Port read timed out."
    Finally
        If com1 IsNot Nothing Then com1.Close()
    End Try

    Return returnStr
End Function

Check the detailed article
 http://www.dreamincode.net/forums/topic/37361-serial-port-communication-in-vbnet/
0

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