从定制XML不使用的XElement';如何序列化/反序列化到`字典＆LT; INT，字符串＆GT？ [英] How to serialize/deserialize to `Dictionary<int, string>` from custom XML not using XElement?

问题描述

有空词典＆LT; INT，字符串＆GT; 如何与XML键和值填充它像

Having empty Dictionary<int, string> how to fill it with keys and values from XML like

<items>
<item id='int_goes_here' value='string_goes_here'/>
</items>

和未使用的XElement回序列化到XML？

and serialize it back into XML not using XElement?

推荐答案

通过临时项目类的帮助

public class item
{
    [XmlAttribute]
    public int id;
    [XmlAttribute]
    public string value;
}

样品词典：的

Dictionary<int, string> dict = new Dictionary<int, string>()
{
    {1,"one"}, {2,"two"}
};

XmlSerializer serializer = new XmlSerializer(typeof(item[]), 
                                 new XmlRootAttribute() { ElementName = "items" });

序列化

serializer.Serialize(stream, 
              dict.Select(kv=>new item(){id = kv.Key,value=kv.Value}).ToArray() );

反序列化

var orgDict = ((item[])serializer.Deserialize(stream))
               .ToDictionary(i => i.id, i => i.value);

----------------------------------------------- -------------------------------

下面是如何可以做到的使用的XElement 的，如果你改变了主意。

------------------------------------------------------------------------------

Here is how it can be done using XElement, if you change your mind.

序列化

XElement xElem = new XElement(
                    "items",
                    dict.Select(x => new XElement("item",new XAttribute("id", x.Key),new XAttribute("value", x.Value)))
                 );
var xml = xElem.ToString(); //xElem.Save(...);

反序列化

XElement xElem2 = XElement.Parse(xml); //XElement.Load(...)
var newDict = xElem2.Descendants("item")
                    .ToDictionary(x => (int)x.Attribute("id"), x => (string)x.Attribute("value"));

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