help with xml request

[donnovan]

hi all,

i am trying to send request over tcp to cummunicate with a CCV POS Engine.

but i keep on getting this error
System.InvalidO perationExcepti on:In XML-document (2, 2)System.Invali dOperationExcep tion: <ServiceReque st xmlns='http://www.nrf-arts.org/IXRetail/namespace'> not expected.

if i dont send this attribute i get the same error:
system.invalid. opratorexceptio n xmlns="" was not expected.

any ideas?


this is my code im working in VS 2010 using C# .net microframework

 public static byte[] LoginRequest()
        {
            MemoryStream ms = new MemoryStream();
            XmlWriter xmlwrite = XmlWriter.Create(ms);

            xmlwrite.WriteString("\r");
            xmlwrite.WriteProcessingInstruction("xml", "version=\"1.0\" encoding=\"utf-8\"");
            
            xmlwrite.WriteStartElement("ServiceRequest");
            xmlwrite.WriteAttributeString("WorkstationID", WorkstationId); 
            xmlwrite.WriteAttributeString("RequestID", "1");
            xmlwrite.WriteAttributeString("RequestType", "Login");
            xmlwrite.WriteAttributeString("xmlns","http://www.nrf-arts.org/IXRetail/namespace");

            xmlwrite.WriteString("\r\t");
            xmlwrite.WriteStartElement("POSdata");
            xmlwrite.WriteAttributeString("LanguageCode", "nl");

            xmlwrite.WriteString("\r\t\t");
            xmlwrite.WriteStartElement("POSTimeStamp");
            xmlwrite.WriteString(time);
            xmlwrite.WriteEndElement();

            xmlwrite.WriteString("\r\t\t");
            xmlwrite.WriteStartElement("ShiftNumber");
            xmlwrite.WriteString("0");
            xmlwrite.WriteEndElement();

            xmlwrite.WriteString("\r\t\t");
            xmlwrite.WriteStartElement("PrinterStatus");
            xmlwrite.WriteString("Unavailable");
            xmlwrite.WriteEndElement();

            xmlwrite.WriteString("\r\t");
            xmlwrite.WriteEndElement();     // End POSdata
            xmlwrite.WriteString("\r");
            xmlwrite.WriteEndElement();    // End root ServiceRequest

            xmlwrite.Flush();
            byte[] byteArray = ms.ToArray();
            xmlwrite.Close();

            //////// display the XML data ///////////
            
            char[] cc = System.Text.UTF8Encoding.UTF8.GetChars(byteArray);
            string str = new string(cc);
            Debug.Print(str);

            return byteArray;
        }

and this i how the xml output should look like

<?xml version="1.0" encoding="utf-8"?>
<ServiceReque st WorkstationID=" POS" RequestID="57" RequestType="Lo gin" xmlns="http://www.nrf-arts.org/IXRetail/namespace">
<POSdata LanguageCode="n l">
<POSTimeStamp>2 007-03-21T14:11:14.375 +01:00</POSTimeStamp>
<ShiftNumber> 0</ShiftNumber>
<PrinterStatus> Available</PrinterStatus>
</POSdata>
</ServiceRequest>

thnx

[donnovan]

i found the problem, i was using the wrong endpoint.