Question

我有以下XML文件

select t.id, t.data1,
       first_value(data2) over (partition by grp order by id) as newcolumn
from (select t.*,
             sum(case when data1 = 'value1' then 1 else 0 end) over (order by id) as grp
      from t
     ) t;

我使用以下代码来阅读此文件

<eConnect xmlns:dt="urn:schemas-microsoft-com:datatypes">
  <SOPTransactionType>
    <eConnectProcessInfo>
      <ConnectionString>Data Source=DGLSQL1;Initial Catalog=dgl;Persist Security Info=False;Integrated Security=SSPI</ConnectionString>
      <EConnectProcsRunFirst>True</EConnectProcsRunFirst>
    </eConnectProcessInfo>
    <taSopLotAuto_Items>
      <taSopLotAuto>
        <SOPTYPE>2</SOPTYPE>
        <SOPNUMBE>435462</SOPNUMBE>
        <LNITMSEQ>16384</LNITMSEQ>
        <ITEMNMBR>7740</ITEMNMBR>
        <LOCNCODE>18</LOCNCODE>
        <QUANTITY>65</QUANTITY>
        <LOTNUMBR>15483D0104X68X</LOTNUMBR>
      </taSopLotAuto>
    </taSopLotAuto_Items>
  </SOPTransactionType>
</eConnect>

在这里，我想阅读XmlDocument doc = new XmlDocument(); doc.Load("C:\\SOP.XML"); XmlNodeList nodes = doc.SelectNodes("/taSopLotAuto_Items/taSopLotAutoka"); foreach (XmlNode node in nodes) { string text = node["SOPTYPE"].InnerText; Console.WriteLine(text + "\n"); }的内容。但我无法读取文件内容。这是因为文档中写的前几行吗？请帮我解决问题。

Answer 1

命名空间是一个问题。您可以使用Linq，如下所示

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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string xml =
                "<eConnect xmlns:dt=\"urn:schemas-microsoft-com:datatypes\">" +
                  "<SOPTransactionType>" +
                    "<eConnectProcessInfo>" +
                      "<ConnectionString>Data Source=DGLSQL1;Initial Catalog=dgl;Persist Security Info=False;Integrated Security=SSPI</ConnectionString>" +
                      "<EConnectProcsRunFirst>True</EConnectProcsRunFirst>" +
                    "</eConnectProcessInfo>" +
                    "<taSopLotAuto_Items>" +
                      "<taSopLotAuto>" +
                        "<SOPTYPE>2</SOPTYPE>" +
                        "<SOPNUMBE>435462</SOPNUMBE>" +
                        "<LNITMSEQ>16384</LNITMSEQ>" +
                        "<ITEMNMBR>7740</ITEMNMBR>" +
                        "<LOCNCODE>18</LOCNCODE>" +
                        "<QUANTITY>65</QUANTITY>" +
                        "<LOTNUMBR>15483D0104X68X</LOTNUMBR>" +
                      "</taSopLotAuto>" +
                      "<taSopLotAuto>" +
                        "<SOPTYPE>2</SOPTYPE>" +
                        "<SOPNUMBE>435462</SOPNUMBE>" +
                        "<LNITMSEQ>16384</LNITMSEQ>" +
                        "<ITEMNMBR>7740</ITEMNMBR>" +
                        "<LOCNCODE>18</LOCNCODE>" +
                        "<QUANTITY>65</QUANTITY>" +
                        "<LOTNUMBR>15483D0104X68X</LOTNUMBR>" +
                      "</taSopLotAuto>" +
                      "<taSopLotAuto>" +
                        "<SOPTYPE>2</SOPTYPE>" +
                        "<SOPNUMBE>435462</SOPNUMBE>" +
                        "<LNITMSEQ>16384</LNITMSEQ>" +
                        "<ITEMNMBR>7740</ITEMNMBR>" +
                        "<LOCNCODE>18</LOCNCODE>" +
                        "<QUANTITY>65</QUANTITY>" +
                        "<LOTNUMBR>15483D0104X68X</LOTNUMBR>" +
                      "</taSopLotAuto>" +
                    "</taSopLotAuto_Items>" +
                  "</SOPTransactionType>" +
                "</eConnect>";

            XDocument doc = XDocument.Parse(xml);
            List<XElement> taSopLotAutos = doc.Descendants()
                .Where(x => x.Name.LocalName == "taSopLotAuto")
                .ToList();

            var results = taSopLotAutos.Select(x => new
            {
                sopType = (int)x.Element("SOPTYPE"),
                sopNumbe = (int)x.Element("SOPNUMBE"),
                lnitmsseg = (int)x.Element("LNITMSEQ"),
                locncode = (int)x.Element("LOCNCODE"),
                quantity = (int)x.Element("QUANTITY"),
                lotnumbr = (string)x.Element("LOTNUMBR")
            }).ToList();
        }
    }
}

由于父节点，无法读取XML

1 个答案: