我可以直接将XML序列化为字符串而不是使用C#的流吗？

Question

此示例使用a StringWriter来保存序列化数据,然后调用ToString()给出实际string值:

Person john = new Person();
XmlSerializer xmlSerializer = new XmlSerializer(typeof(Person));
StringWriter stringWriter = new StringWriter();
xmlSerializer.Serialize(stringWriter, john);
string serializedXML = stringWriter.ToString();

有没有更简单/更清洁的方法来做到这一点？所有Serialize()重载似乎都使用了一个Stream或Writer.

更新:问一个关于通过扩展方法序列化IEnumerable的类似问题.

Answer 1

有趣的扩展方法......

var ret = john.ToXmlString()

public static class XmlTools
{
    public static string ToXmlString<T>(this T input)
    {
        using (var writer = new StringWriter())
        {
            input.ToXml(writer);
            return writer.ToString();
        }
    }
    public static void ToXml<T>(this T objectToSerialize, Stream stream)
    {
        new XmlSerializer(typeof(T)).Serialize(stream, objectToSerialize);
    }

    public static void ToXml<T>(this T objectToSerialize, StringWriter writer)
    {
        new XmlSerializer(typeof(T)).Serialize(writer, objectToSerialize);
    }
}

Answer 2

或多或少同样的解决方案,只需使用扩展方法:

static class XmlExtensions {

    // serialize an object to an XML string
    public static string ToXml(this object obj) {
        // remove the default namespaces
        XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
        ns.Add(string.Empty, string.Empty);
        // serialize to string
        XmlSerializer xs = new XmlSerializer(obj.GetType());
        StringWriter sw = new StringWriter();
        xs.Serialize(sw, obj, ns);
        return sw.GetStringBuilder().ToString();
    }

}

[XmlType("Element")]
public class Element {
    [XmlAttribute("name")]
    public string name;
}

class Program {
    static void Main(string[] args) {
        Element el = new Element();
        el.name = "test";
        Console.WriteLine(el.ToXml());
    }
}

Answer 3

我创建了这个辅助方法，但尚未测试它。根据 orsogufo 的评论更新了代码（两次）：

private string ConvertObjectToXml(object objectToSerialize)
{
    XmlSerializer xmlSerializer = new XmlSerializer(objectToSerialize.GetType());
    StringWriter stringWriter = new StringWriter();

    xmlSerializer.Serialize(stringWriter, objectToSerialize);

    return stringWriter.ToString();
}