我的XML如下所示:
<rates>
<rate1>1250.00</rate1>
<rate2>1900.00</rate2>
</rates>
这是我的Serializable类:
[XmlRoot("main")]
public class Main
{
[XmlArray("rates"), XmlAnyElement]
public Rates Rates { get; set; }
}
public class Rates : List<Rate> { }
public class Rate
{
[XmlAnyElement]
public string Rate;
}
如何反序列化XML以便我可以使用以下方法访问它:
var rate1 = Main.Rates[0].Rate;
var rate2 = Main.Rates[1].Rate;
答案 0 :(得分:3)
您可以通过Rates
集合implement IXmlSerializable
:
public class Rates : List<Rate>, IXmlSerializable
{
public Rates() : base() { }
public Rates(IEnumerable<Rate> collection) : base(collection) { }
#region IXmlSerializable Members
XmlSchema IXmlSerializable.GetSchema()
{
return null;
}
void IXmlSerializable.ReadXml(XmlReader reader)
{
// for the `decodeName` delegate, you could check that the node name matches the pattern "rateN" for some integer N, if you want.
XmlKeyValueListHelper.ReadXml(reader, this, null, s => new Rate { RateValue = s });
}
void IXmlSerializable.WriteXml(XmlWriter writer)
{
XmlKeyValueListHelper.WriteXml(writer, this, (i, rate) => "rate" + XmlConvert.ToString(i), r => r.RateValue);
}
#endregion
}
public class Rate
{
public string RateValue;
}
public static class XmlKeyValueListHelper
{
const string XsiNamespace = @"http://www.w3.org/2001/XMLSchema-instance";
const string XsiNil = "nil";
public static void WriteXml<T>(XmlWriter writer, IEnumerable<T> collection, Func<int, T, string> encodeName, Func<T, string> encodeValue)
{
int i = 0;
foreach (var item in collection)
{
writer.WriteStartElement(XmlConvert.EncodeLocalName(encodeName(i, item)));
if (item == null)
{
writer.WriteAttributeString(XsiNil, XsiNamespace, XmlConvert.ToString(true));
}
else
{
writer.WriteValue(encodeValue(item) ?? "");
}
writer.WriteEndElement();
i++;
}
}
public static void ReadXml<T>(XmlReader reader, ICollection<T> collection, Func<int, string, bool> decodeName, Func<string, T> decodeValue)
{
if (reader.IsEmptyElement)
{
reader.Read();
return;
}
int i = 0;
reader.ReadStartElement(); // Advance to the first sub element of the list element.
while (reader.NodeType == XmlNodeType.Element)
{
var key = XmlConvert.DecodeName(reader.Name);
if (decodeName == null || decodeName(i, key))
{
var nilValue = reader[XsiNil, XsiNamespace];
if (!string.IsNullOrEmpty(nilValue) && XmlConvert.ToBoolean(nilValue))
{
collection.Add(default(T));
reader.Skip();
}
else
{
string value;
if (reader.IsEmptyElement)
{
value = string.Empty;
// Move past the end of item element
reader.Read();
}
else
{
// Read content and move past the end of item element
value = reader.ReadElementContentAsString();
}
collection.Add(decodeValue(value));
}
}
else
{
reader.Skip();
}
i++;
}
// Move past the end of the list element
reader.ReadEndElement();
}
}
示例fiddle。
答案 1 :(得分:1)
使用XmlSerializer.UnknownElement
事件处理程序可以很容易地处理动态元素名称。
例如,我们有以下xml:
<main>
<rates>
<rate1>1250.00</rate1>
<rate2>1900.00</rate2>
</rates>
</main>
和班级:
[XmlRoot("main")]
public class Main
{
public List<Rate> Rates { get; set; }
}
public class Rate
{
public string Value { get; set; }
}
反序列化:
var xs = new XmlSerializer(typeof(Main));
// add event handler
xs.UnknownElement += Xs_UnknownElement;
Main main;
using (var fs = new FileStream("test.xml", FileMode.Open))
main = (Main)xs.Deserialize(fs);
事件处理程序代码:
private void Xs_UnknownElement(object sender, XmlElementEventArgs e)
{
Main main = (Main)e.ObjectBeingDeserialized;
foreach (XmlNode node in e.Element.ChildNodes)
main.Rates.Add(new Rate { Value = node.InnerText });
}