基於元素屬性反序列化XML

Question

我正在嘗試在C＃程序中反序列化XML文件，如下所示：

<?xml version="1.0" encoding="utf-8" ?>
<Addresses>
  <ListName>Flowers</ListName>
  <Address contextRef="RP.CC">Some Address</Address>
  <Address contextRef="RP.BE">Some Other Address</Address>
  <Address contextRef="RP.BV">Yet Another Address</Address>
  <Address contextRef="RP.CAL">Wow, I Can't Believe It's Another Address</Address>
</Addresses>

我對此文件的格式沒有任何控制權。 但是，它將始終具有這4個Address元素的某種組合（即，僅使用這4個contextRef屬性值），並且每次具有不同的元素值。

現在，無需將其反序列化為一個Address數組，而是需要將它們發送到Addresses對象內的各個屬性。 我的當前實現使用一個數組，然后使用一個setter方法根據contextRef設置這些屬性，如下所示：

public class Addresses
{
    [XmlElement("ListName")]
    public string ListName { get; set; }

    private Address[] _addresses;

    [XmlElement("Address")]
    public Address[] AddressesArray
    {
        get
        {
            return _addresses;
        }
        set
        {
            _addresses = value;
            SetAddress();
        }
    }

    [XmlIgnore]
    public Address AddressG21 { get; set; }

    [XmlIgnore]
    public Address AddressG22 { get; set; }

    [XmlIgnore]
    public Address AddressG23 { get; set; }

    [XmlIgnore]
    public Address AddressG9 { get; set; }

    private void SetAddress()
    {
        foreach (var address in _addresses)
        {
            if (address.ContextRef == "RP.CC")
            {
                AddressG21 = address;
            }
            else if (address.ContextRef == "RP.BE")
            {
                AddressG22 = address;
            }
            else if (address.ContextRef == "RP.BV")
            {
                AddressG23 = address;
            }
            else if (address.ContextRef == "RP.CAL")
            {
                AddressG9 = address;
            }
        }
    }
}

地址對象的定義如下：

public class Address
{
    private string valueField;

    /// <remarks/>
    [XmlText]
    public string Value
    {
        get
        {
            return this.valueField;
        }
        set
        {
            this.valueField = value;
        }
    }

    [XmlAttribute("contextRef")]
    public string ContextRef { get; set; }
}

因此，我的問題是，是否有一種更整潔/更好的方法來將此XML直接反序列化為AddressG21等對象屬性，而無需先使用Address數組？

提前致謝。

Answer 1

我將使用xml linq並在類中創建字典

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            XDocument doc = XDocument.Load(FILENAME);

            Addresses addresses = doc.Descendants("Addresses").Select(x => new Addresses() {
                ListName = (string)x.Element("ListName"),
                dict = x.Elements("Address")
                   .GroupBy(y => (string)y.Attribute("contextRef"), z => (string)z)
                   .ToDictionary(y => y.Key, z => z.FirstOrDefault())
            }).FirstOrDefault();

        }
    }
    public class Addresses
    {
        public string ListName { get; set; }
        public Dictionary<string, string> dict { get; set; }
    }

}

---

如果您有多個Addresses元素，請使用此

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            XDocument doc = XDocument.Load(FILENAME);

            List<Addresses> addresses = doc.Descendants("Addresses").Select(x => new Addresses() {
                ListName = (string)x.Element("ListName"),
                dict = x.Elements("Address")
                   .GroupBy(y => (string)y.Attribute("contextRef"), z => (string)z)
                   .ToDictionary(y => y.Key, z => z.FirstOrDefault())
            }).ToList();

        }
    }
    public class Addresses
    {
        public string ListName { get; set; }
        public Dictionary<string, string> dict { get; set; }
    }

}