protected virtual void OnValueChanged(ValueChangedEventargs e)
{
if (ValueChanged != null)
{
ValueChanged(this, e);
}
;
}
private void ReadRFID()
{
ValueChangedEventargs eventResult = new ValueChangedEventargs();
using (SerialPort rfidReader = new SerialPort(portName, 9600, Parity.None, 8, StopBits.One))
{
rfidReader.ReadTimeout = 3000;
try
{
rfidReader.Close();
rfidReader.Open();
eventResult.Result = rfidReader.ReadLine();
}
catch (Exception e)
{
if (!(e is TimeoutException))
{
eventResult.Error = e;
}
;
}
finally
{
rfidReader.Close();
};
};
if (lastEventResult == null)
{
lastEventResult = eventResult;
}
;
if (lastEventResult.Hash != eventResult.Hash && eventResult.CardType != ValueChangedEventargs.ECardType.None)
{
lastEventResult = eventResult;
OnValueChanged(eventResult);
}
;
}
