如何在C＃中从数据表生成XML

Question

我有一个来自数据库的数据表，其中包含如下数据

ID  NAME    SERVICE                 SITENAME                NODENAME
27883481    EAGLE HILLS PROPERTIES  MANAGED WAN CAPITAL GATE-ADNEC LEANING TOWER    capitalgatetwrill-ra
27883481    EAGLE HILLS PROPERTIES  MANAGED WAN 2020 BLDG   dxbcontactcentreill-rb
27883481    EAGLE HILLS PROPERTIES  MANAGED WAN 2020 BLDG   dxbcontactcentreill-ra
27883481    EAGLE HILLS PROPERTIES  MANAGED WAN CAPITAL GATE-ADNEC LEANING TOWER    capitalgatetwrill-rb
27883481    EAGLE HILLS PROPERTIES  MANAGED LAN CAPITAL GATE-ADNEC LEANING TOWER    capitalgatetwrill-ra
27883481    EAGLE HILLS PROPERTIES  MANAGED LAN 2020 BLDG               dxbcontactcentreill-rb
27883481    EAGLE HILLS PROPERTIES  MANAGED LAN 2020 BLDG               dxbcontactcentreill-ra
27883481    EAGLE HILLS PROPERTIES  MANAGED LAN CAPITAL GATE-ADNEC LEANING TOWER    capitalgatetwrill-rb
27883   EAGLE DRILLS PROPERTIES MANAGED WAN     CAPITAL GATE-ADNEC LEANING TOWER    capitalgatetwrill-ra
27883   EAGLE DRILLS PROPERTIES MANAGED WAN     2020 BLDG               dxbcontactcentreill-rb
27883   EAGLE DRILLS PROPERTIES MANAGED WAN     2020 BLDG               dxbcontactcentreill-ra
27883   EAGLE DRILLS PROPERTIES MANAGED WAN     CAPITAL GATE-ADNEC LEANING TOWER    capitalgatetwrill-rb

我想从上面的数据创建XMl，如下所示，它是XML的原型

<?xml version="1.0" encoding="utf-8" ?>
<AllSites>
  <SITE_NODES>
    <ID>27883481</ID>
    <NAME>EAGLE HILLS PROPERTIES""</NAME>
    <PARTY_SERVICES>
      <SERVICE_NAME>MANAGED WAN</SERVICE_NAME>
      <SERVICE_SITES>
        <SITE_NAME>CAPITAL GATE-ADNEC LEANING TOWER</SITE_NAME>
        <SITE_NODES>
          <NODE_NAME>capitalgatetwrill-ra</NODE_NAME>
          <NODE_NAME>capitalgatetwrill-rb</NODE_NAME>
        </SITE_NODES>
      </SERVICE_SITES>
      <SERVICE_SITES>
        <SITE_NAME>2020 BLDG</SITE_NAME>
        <SITE_NODES>
          <NODE_NAME>dxbcontactcentreill-rb</NODE_NAME>
          <NODE_NAME>dxbcontactcentreill-ra</NODE_NAME>
        </SITE_NODES>
      </SERVICE_SITES>
    </PARTY_SERVICES>
    <PARTY_SERVICES>
      <SERVICE_NAME>MANAGED LAN</SERVICE_NAME>
      <SERVICE_SITES>
        <SITE_NAME>CAPITAL GATE-ADNEC LEANING TOWER</SITE_NAME>
        <SITE_NODES>
          <NODE_NAME>abcd-ra</NODE_NAME>
          <NODE_NAME>abcd-rb</NODE_NAME>
        </SITE_NODES>
      </SERVICE_SITES>
      <SERVICE_SITES>
        <SITE_NAME>2021 BLDG</SITE_NAME>
        <SITE_NODES>
          <NODE_NAME>pqms-rb</NODE_NAME>
          <NODE_NAME>pqms-ra</NODE_NAME>
        </SITE_NODES>
      </SERVICE_SITES>
    </PARTY_SERVICES>
  </SITE_NODES>
</AllSites>

如何生成它？我需要创建一个带有占位符的XML模板，该占位符应在运行时替换吗？或创建c＃类并按如下所示生成它

 public class DetailsBO
    {
        public string ID { get; set; }
        public string NAME { get; set; }
        public string SERVICE { get; set; }
        public List<SitesBO> sites { get; set; }
    }
    public class SitesBO
    {
        public string SITENAME { get; set; }
        public List<NodesBO> noodes { get; set; }
    }
    public class NodesBO
    {
        public string NODENAME { get; set; }
    }

有人可以给我C＃代码吗

编辑

假设站点名称为空或为空，则所有站点都将成为与WAN或LAN相同的服务类型

 DataTable dt = new DataTable();
            dt.Columns.Add("ID", typeof(string));
            dt.Columns.Add("NAME", typeof(string));
            dt.Columns.Add("SERVICE", typeof(string));
            dt.Columns.Add("SITENAME", typeof(string));
            dt.Columns.Add("NODENAME", typeof(string));

            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED WAN", "", "capitalgatetwrill-ra" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED WAN", "2020 BLDG", "dxbcontactcentreill-rb" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED WAN", "2020 BLDG", "dxbcontactcentreill-ra" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED WAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-rb" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED LAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-ra" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED LAN", "2020 BLDG", "dxbcontactcentreill-rb" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED LAN", "2020 BLDG", "dxbcontactcentreill-ra" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED LAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-rb" });
            dt.Rows.Add(new object[] { "27883", "EAGLE DRILLS PROPERTIES", "MANAGED WAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-ra" });
            dt.Rows.Add(new object[] { "27883", "EAGLE DRILLS PROPERTIES", "MANAGED WAN", "2020 BLDG", "dxbcontactcentreill-rb" });
            dt.Rows.Add(new object[] { "27883", "EAGLE DRILLS PROPERTIES", "MANAGED WAN", "2020 BLDG", "dxbcontactcentreill-ra" });
            dt.Rows.Add(new object[] { "27883", "EAGLE DRILLS PROPERTIES", "MANAGED WAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-rb" });

Answer 1

最少的代码是获取当前数据表并直接输出到xml。 您可以修改代码以使用Entity来创建类并序列化这些类。 但是因为您已经有了数据表，所以我只好使用表并直接将xml设置为XML。 看来您删除了重复项，所以我也这样做了。 我还下令结果。

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

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("ID", typeof(string));
            dt.Columns.Add("NAME", typeof(string));
            dt.Columns.Add("SERVICE", typeof(string));
            dt.Columns.Add("SITENAME", typeof(string));
            dt.Columns.Add("NODENAME", typeof(string));

            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED WAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-ra" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED WAN", "2020 BLDG", "dxbcontactcentreill-rb" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED WAN", "2020 BLDG", "dxbcontactcentreill-ra" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED WAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-rb" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED LAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-ra" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED LAN", "2020 BLDG", "dxbcontactcentreill-rb" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED LAN", "2020 BLDG", "dxbcontactcentreill-ra" });
            dt.Rows.Add(new object[] { "27883481", "EAGLE HILLS PROPERTIES", "MANAGED LAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-rb" });
            dt.Rows.Add(new object[] { "27883", "EAGLE DRILLS PROPERTIES", "MANAGED WAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-ra" });
            dt.Rows.Add(new object[] { "27883", "EAGLE DRILLS PROPERTIES", "MANAGED WAN", "2020 BLDG", "dxbcontactcentreill-rb" });
            dt.Rows.Add(new object[] { "27883", "EAGLE DRILLS PROPERTIES", "MANAGED WAN", "2020 BLDG", "dxbcontactcentreill-ra" });
            dt.Rows.Add(new object[] { "27883", "EAGLE DRILLS PROPERTIES", "MANAGED WAN", "CAPITAL GATE-ADNEC LEANING TOWER", "capitalgatetwrill-rb" });

            dt = dt.AsEnumerable()
                .OrderBy(x => x.Field<string>("ID"))
                .ThenBy(x => x.Field<string>("NAME"))
                .ThenBy(x => x.Field<string>("SERVICE"))
                .ThenBy(x => x.Field<string>("SITENAME"))
                .ThenBy(x => x.Field<string>("NODENAME"))
                .CopyToDataTable();


            string xml = "<?xml version=\"1.0\" encoding=\"utf-8\" ?><AllSites></AllSites>";
            XDocument doc = XDocument.Parse(xml);
            XElement allSites = doc.Root;

            foreach (var idGroup in dt.AsEnumerable().GroupBy(x => x.Field<string>("ID")))
            {
                XElement siteNode = new XElement("SITE_NODE");
                allSites.Add(siteNode);


                siteNode.Add(new XElement("ID", idGroup.Key));
                siteNode.Add(new XElement("NAME", idGroup.First().Field<string>("NAME")));

                XElement partyServices = new XElement("PARTY_SERVICES");
                siteNode.Add(partyServices);

                partyServices.Add(new XElement("SERVICE_NAME", idGroup.First().Field<string>("SERVICE")));


                foreach (var serviceSite in idGroup.GroupBy(x => x.Field<string>("SITENAME")))
                {
                    XElement serviceSites = new XElement("SERVICE_SITES");
                    partyServices.Add(serviceSites);
                    serviceSites.Add(new XElement("SITE_NAME", serviceSite.Key));

                    XElement siteNodes = new XElement("SITE_NODES");
                    serviceSites.Add(siteNodes);

                    string[] nodeNames = serviceSite.Select(x => x.Field<string>("NODENAME")).Distinct().ToArray();
                    foreach (string nodeName in nodeNames)
                    {
                        siteNodes.Add(new XElement("NODE_NAME", nodeName));
                    }
                }
            }

            doc.Save(FILENAME);

        }
    }
}