CODEWITHSUNDEEP
c#xmlserializationxml-serialization
Matthew Bierman
Matthew Bierman

Reputation: 360

Can I specify the element name of the items when I inherit from List<T>

I am trying to figure out a way to specify the element name for serialization when I inherit from List

class 
{
    [XmlRoot(ElementName = "Foo")]
    public class Widget
    {
        public int ID { get; set; }
    }

    [XmlRoot(ElementName = "Foos")]
    public class WidgetList : List<Widget>
    {

    }
}

public static XElement GetXElement(object obj)
{
    using (var memoryStream = new MemoryStream())
    {
        using (TextWriter streamWriter = new StreamWriter(memoryStream))
        {
            var xmlSerializer = new XmlSerializer(obj.GetType());
            XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
            ns.Add("dn", "http://defaultnamespace");
            xmlSerializer.Serialize(streamWriter, obj, ns);
            return XElement.Parse(Encoding.ASCII.GetString(memoryStream.ToArray()));
        }
    }
}

static void Main(string[] args)
{

    WidgetList list = new WidgetList();

    list.Add(new Widget { ID = 0 });
    list.Add(new Widget { ID = 1 });

    XElement listElement = GetXElement(list);

    Console.WriteLine(listElement.ToString());
    Console.ReadKey();
}

Result:

<Foos xmlns:dn="http://defaultnamespace">
  <Widget>
    <ID>0</ID>
  </Widget>
  <Widget>
    <ID>1</ID>
  </Widget>
</Foos>

Desired Result:

<Foos xmlns:dn="http://defaultnamespace">
  <Foo>
    <ID>0</ID>
  </Foo>
  <Foo>
    <ID>1</ID>
  </Foo>
</Foos>

I was mostly wondering if I could modify "GetXElement" to respect the XmlRoot attribute of "Widget", but I am open to other ideas as long as I can still inherit from list. I do not like the solution given here: Serialize a generic collection specifying element names for items in the collection

Upvotes: 1

Views: 58

Answers (1)

osos95
osos95

Reputation: 169

[XmlType(TypeName = "Foo")]
[Serializable]
public class Widget
{
    public int ID { get; set; }
}

Upvotes: 1

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