读取xML不起作用

问题描述

 

<？xml version =" 1.0"编码= QUOT; UTF-8英寸？>
$
<招标>

  < Ravina>

  &NBSP; < BillNo> 1< / BillNo>

  &NBSP; < PageNo> 10< / PageNo>

  &NBSP; <活动>金属< /活动>

  < / Ravina>

  < Ravina>

  &NBSP; < BillNo> 2< / BillNo>

  &NBSP; < PageNo> 20< / PageNo>

  &NBSP; <活动> Formworks< / Activity>

  < / Ravina>

  < Ravina>  

  &NBSP; &NBSP; &NBSP; < BillNo> 3< / BillNo>

  < PageNo> 30< / PageNo>

  <活动> SiteWorks< / Activity>

  < / Ravina>

< /招标>

var path = Server.MapPath（@"〜/ Product.xml"）;

  &NBSP; &NBSP; &NBSP; XmlTextReader xmlreader = new XmlTextReader（path）;

  &NBSP; &NBSP; &NBSP; //读取xml数据 

  &NBSP; &NBSP; &NBSP; DataSet ds = new DataSet（）;

  &NBSP; &NBSP; &NBSP; ds.ReadXml（xmlreader）;

  &NBSP; &NBSP; &NBSP; xmlreader.Close（）;

  XmlDataDocument xmldoc = new XmlDataDocument（）;

  &NBSP; &NBSP; &NBSP; XmlNodeList xmlnode;

  &NBSP; &NBSP; &NBSP; int i = 0;

  &NBSP; &NBSP; &NBSP; string str = null;



  &NBSP; &NBSP; &NBSP; FileStream fs = new FileStream（path，FileMode.Open，FileAccess.Read）;

  &NBSP; &NBSP; &NBSP; xmldoc.Load（fs）;

  &NBSP; &NBSP; &NBSP; xmlnode = xmldoc.GetElementsByTagName（" Ravina"）;

  &NBSP; &NBSP; &NBSP; for（i = 0; i< = xmlnode.Count - 1; i ++）

  &NBSP; &NBSP; &NBSP; {

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;   str =  xmlnode [i] .ChildNodes.Item（0）.InnerText.Trim（）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; str = xmlnode [i] .ChildNodes.Item（1）.InnerText.Trim（）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; //  str = xmlnode [i] .ChildNodes.Item（0）.InnerText.Trim（）+" &NBSP;" + xmlnode [i] .ChildNodes.Item（1）.InnerText.Trim（）+" &NBSP;" + xmlnode [i] .ChildNodes.Item（2）.InnerText.Trim（）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; // MessageBox.Show（str）;

  &NBSP; &NBSP; &NBSP;使用（XmlWriter writer） b
= XmlWriter.Create（" C：\\\\
y \\ myXmFile.xml"）））
  &NBSP; &NBSP; &NBSP; {

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteStartDocument（）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteStartElement（" Employees"）;



  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; // foreach（员工中的员工员工）

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; // {

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteStartElement（" Employee"）;



  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteElementString（QUOT; ID"，" 123"的ToString（））; &NBSP; //< - 这些是新的$
  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteElementString（" FirstName"，" mohit"）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteElementString（" LastName"，" tiwari"）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteElementString（" Salary"，" 1500"）;
$


  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteEndElement（）;

  &NBSP; &NBSP; &NBSP; &NBSP;   //}



  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteEndElement（）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; writer.WriteEndDocument（）;

  &NBSP; &NBSP; &NBSP; }

解决方案

 

<?xml version="1.0" encoding="utf-8" ?>
<Tenders>
  <Ravina>
    <BillNo>1</BillNo>
    <PageNo>10</PageNo>
    <Activity>Metals</Activity>
  </Ravina>
  <Ravina>
    <BillNo>2</BillNo>
    <PageNo>20</PageNo>
    <Activity>Formworks</Activity>
  </Ravina>
  <Ravina>  
        <BillNo>3</BillNo>
  <PageNo>30</PageNo>
  <Activity>SiteWorks</Activity>
  </Ravina>
</Tenders>

var path = Server.MapPath(@"~/Product.xml");
        XmlTextReader xmlreader = new XmlTextReader(path);
        //reading the xml data  
        DataSet ds = new DataSet();
        ds.ReadXml(xmlreader);
        xmlreader.Close();

 XmlDataDocument xmldoc = new XmlDataDocument();
        XmlNodeList xmlnode;
        int i = 0;
        string str = null;

        FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read);
        xmldoc.Load(fs);
        xmlnode = xmldoc.GetElementsByTagName("Ravina");
        for (i = 0; i <= xmlnode.Count - 1; i++)
        {
             str=   xmlnode[i].ChildNodes.Item(0).InnerText.Trim();
            str = xmlnode[i].ChildNodes.Item(1).InnerText.Trim();
            //  str = xmlnode[i].ChildNodes.Item(0).InnerText.Trim() + "  " + xmlnode[i].ChildNodes.Item(1).InnerText.Trim() + "  " + xmlnode[i].ChildNodes.Item(2).InnerText.Trim();
            // MessageBox.Show(str);
        }

write xml

 using (XmlWriter writer = XmlWriter.Create("C:\\ny\\myXmFile.xml"))
        {
            writer.WriteStartDocument();
            writer.WriteStartElement("Employees");

            //foreach (Employee employee in employees)
            //{
                writer.WriteStartElement("Employee");

                writer.WriteElementString("ID","123".ToString());   // <-- These are new
                writer.WriteElementString("FirstName", "mohit");
                writer.WriteElementString("LastName", "tiwari");
                writer.WriteElementString("Salary", "1500");

                writer.WriteEndElement();
           // }

            writer.WriteEndElement();
            writer.WriteEndDocument();
        }

解决方案

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