子类的C＃XML序列化-从根节点删除xmlns：p1和p1：type属性

因此，在最初提出这个问题的5年后，我遇到了同样的问题，对于没有人回答我感到失望。搜索后，我将一些东西拼凑在一起，这使我可以删除派生类中的type属性。

    internal static string SerializeObject(object objectToSerialize, bool OmitXmlDeclaration = true, System.Type type = null, bool OmitType = false, bool RemoveAllNamespaces = true)
    {
        XmlSerializer x;
        string output;

        if (type != null)
        {
            x = new XmlSerializer(type);
        }
        else
        {
            x = new XmlSerializer(objectToSerialize.GetType());
        }

        XmlWriterSettings settings = new XmlWriterSettings() { Indent = false, OmitXmlDeclaration = OmitXmlDeclaration, NamespaceHandling = NamespaceHandling.OmitDuplicates };

        using (StringWriter swriter = new StringWriter())
        using (XmlWriter xmlwriter = XmlWriter.Create(swriter, settings))
        {
            x.Serialize(xmlwriter, objectToSerialize);

            output = swriter.ToString();
        }

        if (RemoveAllNamespaces || OmitType)
        {
            XDocument doc = XDocument.Parse(output);

            if (RemoveAllNamespaces)
            {
                foreach (var element in doc.Root.DescendantsAndSelf())
                {
                    element.Name = element.Name.LocalName;
                    element.ReplaceAttributes(GetAttributesWithoutNamespace(element));
                }
            }

            if (OmitType)
            {
                foreach (var node in doc.Descendants().Where(e => e.Attribute("type") != null))
                {
                    node.Attribute("type").Remove();
                }
            }

            output = doc.ToString();
        }

        return output;
    }

我使用这个，并在基类中使用[XmlInclude]派生类。然后是OmitType和RemoveAllNamespaces。从本质上讲，然后将派生类视为基类。