如何做多个不同的类来生成 XML？

Posted 2023-04-12

【中文标题】如何做多个不同的类来生成 XML？

【英文标题】：How to do multiple different classes to generate XML?

【发布时间】：2021-07-02 01:19:34

【问题描述】：

我正在尝试进行 XML 序列化。其中有多个不同的类，即 Header & Item。我创建了类 TransferOrder 来组合 Header 和 Item。 Header 做得很好，但 Item 显示了两次。

下面是我的 Program.cs

using System;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;
using System.IO;
using System.Collections.Generic;

namespace XML_Serialization

    
    class Program
    
       
        public static void Main(string[] args)
        
            Program p = new Program();
            p.Final("item.xml");

        

        public void Final(string filename)
        
            XmlSerializer s = new XmlSerializer(typeof(TransferOrder));
            TextWriter writer = new StreamWriter(filename);
            TransferOrder c = new TransferOrder();

            Header head = new Header();
            head.DocNo = 0000000044;
            head.MoveType = 311;
            head.SourceStrType = 010;
            head.SourceStrBin = "IQA";
            head.DestStrType = 921;
            head.DestStrBin = "TRANSFER";
            head.Werks = 3006;

            c.Header = head;

            //Item Serialization 
            Item item1 = new Item();
            item1.MaterialNo = 000000000010001251;
            item1.Sloc = "KM22";
            item1.Quantity = 5.000;
            item1.UOM = "M2";
            item1.PlantID = 3006;
            item1.LineItem = 1;

            Item item2 = new Item();
            item2.MaterialNo = 000000000010001251;
            item2.Sloc = "KM22";
            item2.Quantity = 5.000;
            item2.UOM = "M2";
            item2.PlantID = 3006;
            item2.LineItem = 2;

            Item item3 = new Item();
            item3.MaterialNo = 000000000010001251;
            item3.Sloc = "KM22";
            item3.Quantity = 5.000;
            item3.UOM = "M2";
            item3.PlantID = 3006;
            item3.LineItem = 3;

            Item[] ig =  item1, item2, item3 ;
            c.Item = ig;

            s.Serialize(writer, c);
            writer.Close();

        

    

    public class TransferOrder
    
        public Header Header  get; set; 
        public Item []Item  get; set; 
    

    public class Header
    
        public int DocNo  get; set; 
        public int MoveType  get; set; 
        public int SourceStrType  get; set; 
        public string SourceStrBin  get; set; 
        public int DestStrType  get; set; 
        public string DestStrBin  get; set; 
        public int Werks  get; set; 

    

    public class Item
    
        public int MaterialNo  get; set; 
        public string Sloc  get; set; 
        public double Quantity  get; set; 
        public string UOM  get; set; 
        public int PlantID  get; set; 
        public int LineItem  get; set; 

我想要的结果是这样的

<?xml version="1.0" encoding="utf-8"?><dtl:TransferOrder xmlns:dtl="http://FS.BizTalk.App.RFID.CommonTODetail.Schemas.DetailTO/2021/03">
  <Header>
    <DocNo>0000000044</DocNo>
    <MoveType>311</MoveType>
    <SourceStrType>010</SourceStrType>
    <SourceStrBin>IQA</SourceStrBin>
    <DestStrType>921</DestStrType>
    <DestStrBin>TRANSFER</DestStrBin>
    <Werks>3006</Werks>
  </Header>
  <Item>
    <MaterialNo>000000000010001251</MaterialNo>
    <SLoc>KM22</SLoc>
    <Quantity>5.000</Quantity>
    <UOM>M2</UOM>
    <PlantId>3006</PlantId>
    <LineItem>1</LineItem>
  </Item>
  <Item>
    <MaterialNo>000000000010001251</MaterialNo>
    <SLoc>KM22</SLoc>
    <Quantity>5.000</Quantity>
    <UOM>M2</UOM>
    <PlantId>3006</PlantId>
    <LineItem>2</LineItem>
  </Item>
  <Item>
    <MaterialNo>000000000010001251</MaterialNo>
    <SLoc>KM22</SLoc>
    <Quantity>5.000</Quantity>
    <UOM>M2</UOM>
    <PlantId>3006</PlantId>
    <LineItem>3</LineItem>
  </Item>
</dtl:TransferOrder>

但是，如果你运行我的代码，我的代码输出有 2 Item Element 。这和我想要的不一样。

谁能帮我解决这个问题？

【参考方案1】：

添加[XmlElement]:

    public class TransferOrder
    
        public Header Header  get; set; 
        [XmlElement]
        public Item []Item  get; set; 
    

（默认行为是在列表/数组上添加一个包装层；[XmlElement] 告诉它忽略它并直接转到子数据）