XmlSerializerNamespaces missing prefix[Answered] RSS

• • Reply
  KulerMaster

  Member

  117 Points

  511 Posts

  XmlSerializerNamespaces missing prefix

  Feb 27, 2020 01:23 AM|KulerMaster|LINK

  Hello,

  I have the following classes to be serialized:

      [XmlType(Namespace = "http://schemas.xmlsoap.org/soap/envelope/")]
      public class Envelope
      {        
          public Envelope() { }
          public Body Body { get; set; }
      }
  
      [XmlType(Namespace = "http://schemas.xmlsoap.org/soap/envelope/")]
      public class Body
      {
          public Body() { }
          public InfoDetails infoDetails { get; set; }
      }

  When I serialize those classes like following:

  var myNamespaces = new XmlSerializerNamespaces();
  myNamespaces.Add("soapenv", "http://schemas.xmlsoap.org/soap/envelope/");
  //-- another code here
  mySerializer.Serialize(myWriter, envelope, myNamespaces);

  I end up with an XML like this:

  <?xml version="1.0" encoding="utf-8"?>
  <Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
    <soapenv:Body>
      <soapenv:infoDetails>
      ...
     </soapenv:infoDetails>
    </soapenv:Body>
  </Envelope>

  As you can see the root element is without a prefix soapenv. 

  What I am doing wrong if I want the Envelope element to also has a prefix soapenv?

  Thank you

• • Reply
  Yang Shen

  Contributor

  3140 Points

  983 Posts

  Re: XmlSerializerNamespaces missing prefix

  Feb 27, 2020 04:35 AM|Yang Shen|LINK

  Hi KulerMaster,

  Instead of XmlType, you need to use XmlRoot for your Envelope class.

  I built a demo based on the code from Serialize(XmlWriter, Object, XmlSerializerNamespaces).

  public class Program
      {
          static void Main(string[] args)
          {
              Program t = new Program();
              // Write a purchase order.
              t.SerializeObject(@"C:\Users\yangsh\Desktop\Files\simple.xml");
          }
  
          [XmlRoot(Namespace = "http://schemas.xmlsoap.org/soap/envelope/")]
          public class OrderedItem
          {
              [XmlElement(Namespace = "http://www.cpandl.com")]
              public string ItemName;
              [XmlElement(Namespace = "http://www.cpandl.com")]
              public string Description;
              [XmlElement(Namespace = "http://www.cohowinery.com")]
              public decimal UnitPrice;
              [XmlElement(Namespace = "http://www.cpandl.com")]
              public int Quantity;
              [XmlElement(Namespace = "http://www.cohowinery.com")]
              public decimal LineTotal;
              // A custom method used to calculate price per item.
              public void Calculate()
              {
                  LineTotal = UnitPrice * Quantity;
              }
          }
  
          private void SerializeObject(string filename)
          {
              Console.WriteLine("Writing With TextWriter");
              // Create an XmlSerializer instance using the type.
              XmlSerializer serializer =
              new XmlSerializer(typeof(OrderedItem));
              OrderedItem i = new OrderedItem();
              i.ItemName = "Widget";
              i.Description = "Regular Widget";
              i.Quantity = 10;
              i.UnitPrice = (decimal)2.30;
              i.Calculate();
  
              // Create an XmlSerializerNamespaces object.
              XmlSerializerNamespaces ns =
              new XmlSerializerNamespaces();
              // Add two namespaces with prefixes.
              ns.Add("soapenv", "http://schemas.xmlsoap.org/soap/envelope/");
              ns.Add("inventory", "http://www.cpandl.com");
              ns.Add("money", "http://www.cohowinery.com");
              // Create a StreamWriter to write with.
              TextWriter writer = new StreamWriter(filename);
              /* Serialize using the object using the TextWriter 
              and namespaces. */
              serializer.Serialize(writer, i, ns);
              writer.Close();
          }
      }

  The result - simple.xml:

  <?xml version="1.0" encoding="utf-8"?>
  <soapenv:OrderedItem xmlns:money="http://www.cohowinery.com" xmlns:inventory="http://www.cpandl.com" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
    <inventory:ItemName>Widget</inventory:ItemName>
    <inventory:Description>Regular Widget</inventory:Description>
    <money:UnitPrice>2.3</money:UnitPrice>
    <inventory:Quantity>10</inventory:Quantity>
    <money:LineTotal>23.0</money:LineTotal>
  </soapenv:OrderedItem>

  Best Regard,

  Yang Shen