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XmlSerializerNamespaces missing prefix

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User1536465747 posted

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

Thursday, February 27, 2020 1:23 AM

Answers

User-719153870 posted

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

Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM

Thursday, February 27, 2020 4:35 AM

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XmlSerializerNamespaces missing prefix

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