如何使用属性在xmlelement中获取名称空间？

Question

我有两个类，我需要根据PackageItemNameSpace属性进入PackageItem属性的名称空间

因为我有几个从PackageItem继承的类，每个类都有自己的命名空间

public class Package
{
    //HERE namespace dynamically, getting in YourName property
    public PackageItem PackageItem {get;set;}
}

public class PackageItem
{
    public string PackageItemNameSpace {get;set;}
}

如何设置命名空间的PackageItemNameSpace属性？

我的序列化助手是：

public static string Serialize<T>(T obj, string @namespace = "", bool omitDeclaration = false, bool omitUnusedCharacters = true)
{
    var serializer = new XmlSerializer(typeof(T), @namespace);

    var xmlWriterSettings = new XmlWriterSettings()
    {
        Encoding = Encoding.UTF8
    };

    if (omitUnusedCharacters)
    {
        xmlWriterSettings.Indent = false;
        xmlWriterSettings.NewLineChars = "";
        xmlWriterSettings.NewLineOnAttributes = false;
    }

    if (omitDeclaration)
    {
        xmlWriterSettings.OmitXmlDeclaration = true;
        xmlWriterSettings.ConformanceLevel = ConformanceLevel.Auto;
    }

    using (var stream = new StringWriter())
    {
        using (var xmlWriter = XmlWriter.Create(stream, xmlWriterSettings))
        {
            if (string.IsNullOrEmpty(@namespace))
            {
                serializer.Serialize(xmlWriter, obj);
            }
            else
            {
                var xmlSerializerNamespaces = new XmlSerializerNamespaces();
                xmlSerializerNamespaces.Add("", @namespace);

                serializer.Serialize(xmlWriter, obj, xmlSerializerNamespaces);
            }

            return stream.ToString();
        }
    }
}