GPS and web service confilict

A

adal

I have an app read location from external GPS and send request to a
webservice server using lat and longti as an input.

I use SerialPort class(c#, CF2.0) to read data from GPS, and it works
fine. However, after my serial port is opened. My webservice request
is always failed and I got an exception "Unable to connect to the
remote server". Here is my code:

private void Connect_Click(object sender, EventArgs e)
{
string[] ports = SerialPort.GetPortNames();
_serialPort = new SerialPort(ports[0]);
_serialPort.ReadTimeout = 5000;
_continue = true;
_serialPort.Open();

Thread readThread = new Thread(SerialRead);
readThread.Start();
}

private void SerialRead()
{
while (_continue)
{
string Sentence = _serialPort.ReadLine();
Thread.Sleep(1000);
}
}

private void Disconnect_Click(object sender, EventArgs e)
{
_continue = false;
_serialPort.Close();
}

private void Webservice_Click(object sender, EventArgs e)
{
try
{
WebReference.ContentControlService webService = new
GPSTest.WebReference.ContentControlService();
webService.contentSearch("xxxx");
}
catch (Exception pe)
{
MessageBox.Show(pe.Message);
}
}

Thank you very much in advance for your sugession and hits.

Adal
 
A

adal

Hi,

Very strange, try to use nativ code to access your serial port.

BR

Fabien Decret (Device Application Development MVP)
Windows Embedded Consultant

ADENEO (ADESET)http://www.adeneo.adetelgroup.com/|http://fabdecret.blogspot.com/

I have an app read location from external GPS and send request to a
webservice server using lat and longti as an input.
Click to expand...
I use SerialPort class(c#, CF2.0) to read data from GPS, and it works
fine. However, after my serial port is opened. My webservice request
is always failed and I got an exception "Unable to connect to the
remote server". Here is my code:
Click to expand...
        private void Connect_Click(object sender, EventArgs e)
        {
            string[] ports = SerialPort.GetPortNames();
            _serialPort = new SerialPort(ports[0]);
            _serialPort.ReadTimeout = 5000;
            _continue = true;
            _serialPort.Open();
Click to expand...
            Thread readThread = new Thread(SerialRead);
            readThread.Start();
         }
Click to expand...
        private void SerialRead()
        {
            while (_continue)
            {
                string Sentence = _serialPort.ReadLine();
                Thread.Sleep(1000);
            }
        }
Click to expand...
        private void Disconnect_Click(object sender, EventArgs e)
        {
            _continue = false;
            _serialPort.Close();
        }
Click to expand...
         private void Webservice_Click(object sender, EventArgs e)
        {
            try
            {
                WebReference.ContentControlService webService = new
GPSTest.WebReference.ContentControlService();
                 webService.contentSearch("xxxx");
            }
            catch (Exception pe)
            {
                MessageBox.Show(pe.Message);
            }
        }
Click to expand...
Thank you very much in advance for your sugession and hits.
Click to expand...
Adal- Hide quoted text -
Click to expand...

- Show quoted text -
Click to expand...

Thank you for your reply, Fabien. This code works under windows.
 
D

Dick Grier

Hi,

Why use a thread for reads? The SerialPort object already creates a
background read thread. Thus, a second thread is frosting with no sugar.
Just use the DataAvailable event - receive events are generated in the
SerialPort background thread context.

My suggestion, "the simpler code, the better."

Perhaps your web service problems will be resolved.

Dick

--
Richard Grier, MVP
Hard & Software
Author of Visual Basic Programmer's Guide to Serial Communications, Fourth
Edition,
ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March
2006.
See www.hardandsoftware.net for details and contact information.
 
A

adal

Hi,

Very strange, try to use nativ code to access your serial port.

BR

Fabien Decret (Device Application Development MVP)
Windows Embedded Consultant

ADENEO (ADESET)http://www.adeneo.adetelgroup.com/|http://fabdecret.blogspot.com/

I have an app read location from external GPS and send request to a
webservice server using lat and longti as an input.
Click to expand...
I use SerialPort class(c#, CF2.0) to read data from GPS, and it works
fine. However, after my serial port is opened. My webservice request
is always failed and I got an exception "Unable to connect to the
remote server". Here is my code:
Click to expand...
        private void Connect_Click(object sender, EventArgs e)
        {
            string[] ports = SerialPort.GetPortNames();
            _serialPort = new SerialPort(ports[0]);
            _serialPort.ReadTimeout = 5000;
            _continue = true;
            _serialPort.Open();
Click to expand...
            Thread readThread = new Thread(SerialRead);
            readThread.Start();
         }
Click to expand...
        private void SerialRead()
        {
            while (_continue)
            {
                string Sentence = _serialPort.ReadLine();
                Thread.Sleep(1000);
            }
        }
Click to expand...
        private void Disconnect_Click(object sender, EventArgs e)
        {
            _continue = false;
            _serialPort.Close();
        }
Click to expand...
         private void Webservice_Click(object sender, EventArgs e)
        {
            try
            {
                WebReference.ContentControlService webService = new
GPSTest.WebReference.ContentControlService();
                 webService.contentSearch("xxxx");
            }
            catch (Exception pe)
            {
                MessageBox.Show(pe.Message);
            }
        }
Click to expand...
Thank you very much in advance for your sugession and hits.
Click to expand...
Adal- Hide quoted text -
Click to expand...

- Show quoted text -
Click to expand...

Yes native code works. SerialPort class for cf has defect. Thanks
 
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