ASP.NET 利用Linq和XPath操作XML

XML格式

<?xml version="1.0" encoding="UTF-8"?>
<Projects ID="">
  <ProjectGroup>
    <ProjectItem ID="">
      <InfoList>
        <InfoItem Code="GCXX" Name="工程資訊" Remark="" Value="">
          <InfoItem Code="YSBH" Name="項目編號(必填)" Remark="" Value="20120330001"/>
          <InfoItem Code="YSMC" Name="工程名稱(必填)" Remark="" Value="工程0059"/>
          <InfoItem Code="BuildUnit" Name="建設單位（業主）(必填)" Remark="" Value=" "/>
          <InfoItem Code="JSDWFDR" Name="建設單位法人代表" Remark="" Value=""/>
          <InfoItem Code="GCLX" Name="工程類型(必填)" Remark="" Value=" "/>
          <InfoItem Code="BAGCDQ" Name="工程地區" Remark="" Value=""/>
          <InfoItem Code="GCDD" Name="工程地點" Remark="" Value=""/>
          <InfoItem Code="ZJLY" Name="資金來源" Remark="" Value=""/>
          <InfoItem Code="ConstructVersion" Name="標書版本號碼(必填)" Remark="" Value="廣東省建設工程造價檔案資料交換標準化規定2.0"/>
          <InfoItem Code="WJCJSJ" Name="檔案建立時間" Remark="" Value=""/>
          <InfoItem Code="WJXGSJ" Name="檔案修改時間" Remark="" Value=""/>
          <InfoItem Code="YSLB" Name="檔案類型" Remark="" Value="結算"/>
        </InfoItem>      </InfoList>
    </ProjectItem>
  </ProjectGroup>
</Projects>

添加引用

using System.Xml.Linq;
using System.Xml.XPath;

 

加入代碼：

            string xml_path = Server.MapPath("~/xml/BaseInfo.XML");            XDocument loaded = XDocument.Load(xml_path); //Linq
            IEnumerable<XElement> list_GCXX = loaded.XPathSelectElements("//ProjectGroup/ProjectItem/InfoList/InfoItem[@Code='GCXX']");//工程資訊
            foreach (XElement item in list_GCXX.Elements())
            {
                Label1.Text += "Code=" + item.Attribute("Code").Value.ToString() + " ";
                Label1.Text += "Name="+ item.Attribute("Name").Value.ToString() + " ";
                Label1.Text += "Value=" + item.Attribute("Value").Value.ToString() + " <br>";
                //Response.Write(item.Value + "<br>");
            }

            IEnumerable<XElement> list_CGWJPZ = loaded.XPathSelectElements("//ProjectGroup/ProjectItem/InfoList/InfoItem[@Code='CGWJPZ']");//成果檔案配置
            foreach (XElement item in list_CGWJPZ.Elements())
            {
                Label1.Text += "Code=" + item.Attribute("Code").Value.ToString() + " ";
                Label1.Text += "Name=" + item.Attribute("Name").Value.ToString() + " ";
                Label1.Text += "Value=" + item.Attribute("Value").Value.ToString() + " <br>";
                //Response.Write(item.Value + "<br>");
            }