Serial Port with ASP.net

[DenisRCharron]

I have a web page that use the IO.Ports.SerialPort object
I can write data and receive data from the serial port.

I want to change the label text when I received data from the serial port.
I raised an event from the class but the label text doesn't change

Here's the code

code from the class containing the SerialPort object:

Private Sub varSerialPort_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles varSerialPort.DataReceived
Dim varTime As Date
varTime = Now
If varSerialPort.BytesToRead < 16 Then
Exit Sub
End If
Do While DateDiff(DateInterval.Second, varTime, Now) < 0.5

Loop
ReDim varArrayfromController(varSerialPort.BytesToRead)
varSerialPort.Read(varArrayfromController, 0, varSerialPort.BytesToRead)

SendDataToSender()
RaiseEvent DataReceivedPort("Controller responded")


Here's the code from the page using the class object:

Protected Sub varPortClass_DataReceivedPort(ByRef xMessage As String) Handles varPortClass.DataReceivedPort

varPortClass.ClosePort()

lblInfo.Text = xMessage
Me.txtToSend.Text = xMessage

End Sub