Setting XML Root XMLNS

Question

Hi, Everybody!

I need to create a Shipment XML root whose xmlns is the following fictitious XSD URL: http://api.company.com/schemas/api/company-api-vN.xsd.

<?xml version="1.0" encoding="utf-8"?>
<Shipment
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:xsd="http://www.w3.org/2001/XMLSchema"
	xmlns="http://api.company.net/schemas/api/company-api-v0.4.xsd">
	<Account>ACCOUNT</Account>
	<SNIP />
</Shipment>

I thought that setting its class XMLRoot attribute Namespace to "http://api.company.com/schemas/api/company-api-vN.xsd" would resolve the matter.

    [XmlRoot(ElementName = "Shipment", Namespace = "http://api.company.net/schemas/api/company-api-v0.4.xsd")]
    public partial class Shipment
    {
        [XmlElement(ElementName = "Account")]
        public string Account { get; set; }
        // <SNIP />
    }

Instead, it sets its children's XML tags xmlns attribute accordingly.

<Shipment
	xmlns:xsd="http://www.w3.org/2001/XMLSchema"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
	<Account
		xmlns="http://api.company.com/schemas/api/company-api-vN.xsd">ACCOUNT
	</Account>
	<SNIP />
</Shipment>

The following code generates the XML from the Shipment object.

        private string ObjectToXmlString<TRequest>(TRequest request)
        {
            var memoryStream = new MemoryStream();
            var xmlSerializer = new XmlSerializer(typeof(TRequest));
            var streamReader = new StreamReader(memoryStream);

            xmlSerializer.Serialize(memoryStream, request);
            memoryStream.Position = 0;

            var xmlString = streamReader.ReadToEnd();

            return xmlString;
        }

How do I set the Shipment XML root's xmlns to the desired fictitious XSD URL?

Answer 1

Hi,@Julio Bello. You could try to see if the following code is what you want.

public class Program
{
    public static void Main()
    {

      
        Shipment test = new Shipment();
        test.Account = "ACCOUNT";

        MyWrapper wrapper = new MyWrapper
        {
            Items = { test }
        };
        SerializeToXML(wrapper);
    }
    static public void SerializeToXML(MyWrapper list)
    {
        XmlSerializer serializer = new XmlSerializer(typeof(MyWrapper));
        using (TextWriter textWriter = new StreamWriter(@"C:\Users\Administrator\Desktop\test.xml"))
        {
            serializer.Serialize(textWriter, list);
            textWriter.Close();
        }
    }

    private static string ObjectToXmlString<TRequest>(TRequest request, string xmlns)
    {
        var memoryStream = new MemoryStream();
        var xmlSerializer = new XmlSerializer(typeof(TRequest));
        var streamWriter = new StreamWriter(memoryStream);

        // Create XmlSerializerNamespaces to specify the namespaces
        var namespaces = new XmlSerializerNamespaces();
        namespaces.Add("", xmlns); // Default namespace
                 namespaces.Add("", "http://api.company.com/schemas/api/company-api-vN.xsd");
        xmlSerializer.Serialize(streamWriter, request, namespaces);
        memoryStream.Position = 0;

        var xmlString = new StreamReader(memoryStream).ReadToEnd();

        return xmlString;
    }
   

}
[XmlRoot("Shipment", Namespace = "http://api.company.com/schemas/api/company-api-vN.xsd")]
public class MyWrapper
{
    private List<Shipment> items = new List<Shipment>();
    [XmlElement("Account")]
    public List<Shipment> Items { get { return items; } }
}



[XmlRoot(ElementName = "Shipment")   ]
public partial class Shipment
{
    [XmlElement(ElementName = "Account")]
    public string Account { get; set; }
    
}

The result:

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