xmlserialization error

Question

I am trying to serialize an object (MCCI_IN000001TR01Message that is a class to use web service) using xml serialization, however when serializing it I am getting an error.

MCCI_IN000001TR01Message message = new MCCI_IN000001TR01Message()
{
   id = new MCCI_IN000001TR01MessageID()
            {
                root = "2.16.840.1.113883.3.129.2.1.2",
                extension = _sGuid
            },

   acceptAckCode =
       new MCCI_IN000001TR01MessageAcceptAckCode()

           {
               code = "AL"
           },
   receiver =
       f_Receiver(),
   sender = f_Sender(),
   controlActEvent = f_ControlActEvent(dialysis)
};

MCCI_IN000002TR01Message donen = service.MCCI_AR000001TR_MCCI_IN000001TR(message);

MCCI_IN000001TR01Message is a class is not created by me. It is web service class.

The type System.String may not be used in this context. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: **The type System.String may not be used in this context.**

[InvalidOperationException: The type System.String may not be used in this context.]
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write216_StrucDocText(String n, String ns, StrucDocText o, Boolean isNullable, Boolean needType) +1823
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write403_Item(String n, String ns, POCD_MT000027TR01SocialSecurityFollowNumberSection o, Boolean isNullable, Boolean needType) +1087
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write404_POCD_MT000027TR01Component45(String n, String ns, POCD_MT000027TR01Component45 o, Boolean isNullable, Boolean needType) +942
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write434_Item(String n, String ns, POCD_MT000027TR01ReceptionDataset o, Boolean isNullable, Boolean needType) +1192
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write435_POCD_MT000027TR01Component44(String n, String ns, POCD_MT000027TR01Component44 o, Boolean isNullable, Boolean needType) +942
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write436_Item(String n, String ns, POCD_MT000027TR01StructuredBody o, Boolean isNullable, Boolean needType) +1477
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write437_POCD_MT000027TR01Component1(String n, String ns, POCD_MT000027TR01Component1 o, Boolean isNullable, Boolean needType) +942
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write438_POCD_MT000027TR01Dialysis(String n, String ns, POCD_MT000027TR01Dialysis o, Boolean isNullable, Boolean needType) +1951
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write439_MCCI_IN000001TR01Subject(String n, String ns, MCCI_IN000001TR01Subject o, Boolean isNullable, Boolean needType) +781
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write440_Item(String n, String ns, MCCI_IN000001TR01ControlActEvent o, Boolean isNullable, Boolean needType) +878
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write441_MCCI_IN000001TR01Message(String n, String ns, MCCI_IN000001TR01Message o, Boolean isNullable, Boolean needType) +1627
   Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterMCCI_IN000001TR01Message.Write442_MCCI_IN000001TR01(Object o) +144

[InvalidOperationException: There was an error generating the XML document.]
   waSaglikNetUygulamasi._Default.Page_Load(Object sender, EventArgs e) in C:\Users\duygu.akmaz\Desktop\FMC-Projeler\SaglikNet\trunk\Default.aspx.cs:255
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +91
   System.Web.UI.Control.LoadRecursive() +74
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207

I edit my question. MCCI_IN000002TR01Message donen = service.MCCI_AR000001TR_MCCI_IN000001TR(message); exception is thrown. — Dakmaz, Jun 29 '11 at 10:06

score 1 · Answer 1 · edited Oct 06 '12 at 01:55

1

public string ToXml(DataSet ds)
{
  using (var memoryStream = new MemoryStream())
  {
    using(TextWriter streamWriter = new StreamWriter(memoryStream))
    {
      var xmlSerializer = new XmlSerializer(typeof(DataSet));
      xmlSerializer.Serialize(streamWriter, ds);
      return Encoding.UTF8.GetString(memoryStream.ToArray());
    }
  }
}

edited Oct 06 '12 at 01:55

Konrad Viltersten

36,151
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answered Sep 10 '12 at 05:48

JAY

81
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explain why your answer helps. – jgauffin Jun 09 '15 at 13:35

xmlserialization error

1 Answers1