如何将List<ExpandoObject>转换为XML字符串

Question

我想使用ExpandoObjects列表作为Telerik报告的数据源，但目前Telerik报告似乎不支持这一点。它们确实支持将XML作为数据源，因此我试图将我的ExpandoObjects列表转换为XML。

我在Can I serialize an ExpandoObject in .NET 4?上看到，可以通过ExpandoObject (VB.net代码，而不是c#)通过jsonFx将单个ExpandoObject序列化为XML：

dim XMLwriter As New JsonFx.Xml.XmlWriter
dim serializedExpando as string = XMLwriter.Write(obj)

或其等效的c#代码：

JsonFx.Xml.XmlWriter XMLwriter = new JsonFx.Xml.XmlWriter();
String serializedExpando  = XMLwriter.Write(obj);

如何将整个列表序列化为XML字符串？

Answer 1

您可以先将ExpandoObject转换为IDictionary<string, object>，然后使用DataContractSerializer进行序列化，从而将其序列化：

void Main()
{
    dynamic firstExpando = new ExpandoObject();
    firstExpando.Name = "Name";
    firstExpando.Age = 1;

    dynamic secondExpando = new ExpandoObject();
    secondExpando.Name = "SecondName";
    secondExpando.Age = 2;

    var expandoList = new List<ExpandoObject> {firstExpando, secondExpando};

    var list = expandoList.Select(expando => (IDictionary<string, object>)expando)
                          .ToList();

    var dataContractSerializer = new DataContractSerializer(list.GetType());
    using (MemoryStream memoryStream = new MemoryStream())
    {
        dataContractSerializer.WriteObject(memoryStream, list);
        string outputXml = Encoding.UTF8.GetString(memoryStream.ToArray())
    }
}