xml读写

 

namespace ConvenanceCompany.SQLServerDAL
{
  public  class Company:ICompany {

      /**//// <summary>
      /// Method to get Company Information
      /// </summary>
      /// <returns></returns>
      public CompanyInfo GetCompany(string CompanyInfoFileName)
      {
          //Set up a return value
          CompanyInfo company = null;

          //Get Information from xmlfile
          Dictionary<string, string> companyinfo = ReadCompanyInfoFile(CompanyInfoFileName);

          //Fill in company object
          if (companyinfo != null)
          {
              company = new CompanyInfo();
              if (companyinfo.ContainsKey("Name"))
                  company.Name = companyinfo["Name"];
              else
                  company.Name = "";
              if (companyinfo.ContainsKey("InternetAdress"))
                  company.InternetAddress = companyinfo["InternetAdress"];
              else
                  company.InternetAddress = "";
              if (companyinfo.ContainsKey("BriefIntroduction"))
                  company.BriefIntroduction = companyinfo["BriefIntroduction"];
              else
                  company.BriefIntroduction = "";
              if (companyinfo.ContainsKey("TelFirst") != null)
                  company.TelFirst = companyinfo["TelFirst"];
              else
                  company.TelFirst = "";
              if (companyinfo.ContainsKey("TelSecond"))
                  company.TelSecond = companyinfo["TelSecond"];
              else
                  company.TelSecond = "";
              if (companyinfo.ContainsKey("TelMobile"))
                  company.TelMobile = companyinfo["TelMobile"];
              else
                  company.TelMobile = "";
              if (companyinfo.ContainsKey("Postalcode"))
                  company.Postalcode = companyinfo["Postalcode"];
              else
                  company.Postalcode = "";
              if (companyinfo.ContainsKey("Email"))
                  company.Email = companyinfo["Email"];
              else
                  company.Email = "";
              if (companyinfo.ContainsKey("Address"))
                  company.Address = companyinfo["Address"];
              else
                  company.Address = "";
              if (companyinfo.ContainsKey("Copyright"))
                  company.Copyright = companyinfo["Copyright"];
              else
                  company.Copyright = "";
          }
          return company;
       }

      public Dictionary<string, string> ReadCompanyInfoFile(string CompanyInfoFileName)
      {
          //Memory CompanyInfo file inforomation
          Dictionary<string, string> Companyinfo = new Dictionary<string, string>();
          XmlTextReader readerCompanyInfo = null;
          string startElement = "";
          string endElement = "";
          string textNodeContent = "";
          bool identifierTextNodeContent = false;//标记内容是否为空
          try
          {
              readerCompanyInfo = new XmlTextReader(CompanyInfoFileName);
              while (readerCompanyInfo.Read())
              {
                  switch (readerCompanyInfo.NodeType)
                  {
                      case XmlNodeType.Element:
                          startElement = readerCompanyInfo.Name;
                          identifierTextNodeContent = false;
                          break;
                      case XmlNodeType.Text:
                          identifierTextNodeContent = true;
                          textNodeContent = readerCompanyInfo.Value;
                          break;
                      case XmlNodeType.EndElement:
                          endElement = readerCompanyInfo.Name;
                          if (startElement == endElement)
                          {
                              if (identifierTextNodeContent)
                                  Companyinfo.Add(endElement, textNodeContent);
                              else
                                  Companyinfo.Add(endElement, "");
                          }
                          break;
                  }
              }
          }
          catch (XmlException )
          {
              Companyinfo = null;
          }
          finally
          {
              //Close CompanyInfo file!
              if(readerCompanyInfo!=null)
                  readerCompanyInfo.Close();
          }
          return Companyinfo;
      }

      /**//// <summary>
      /// Mothod to modify companyinfo
      /// </summary>
      /// <returns></returns>
      public bool ModifyCompany(string CompanyInfoFileName,string name, string internetAdress, string briefIntroduction, string telFirst, string telSecond, string telMobile, string postalcode, string email, string address, string copyright)
      {
          XmlTextWriter xmlCompanyInfo;
          try
          {
              xmlCompanyInfo = new XmlTextWriter(CompanyInfoFileName, System.Text.Encoding.GetEncoding("GB2312"));
              xmlCompanyInfo.Formatting = Formatting.Indented;
              xmlCompanyInfo.Indentation = 3;

              xmlCompanyInfo.WriteStartDocument();
              xmlCompanyInfo.WriteStartElement("Company");

              xmlCompanyInfo.WriteStartElement("Name");
              xmlCompanyInfo.WriteString(name);
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteStartElement("InternetAdress");
              xmlCompanyInfo.WriteString(internetAdress);
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteStartElement("BriefIntroduction");
              xmlCompanyInfo.WriteString(briefIntroduction);
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteStartElement("Tel");
              xmlCompanyInfo.WriteStartElement("TelFirst");
              xmlCompanyInfo.WriteString(telFirst);
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteStartElement("TelSecond");
              xmlCompanyInfo.WriteString(telSecond);
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteStartElement("TelMobile");
              xmlCompanyInfo.WriteString(telMobile);
              xmlCompanyInfo.WriteEndElement();
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteStartElement("Postalcode");
              xmlCompanyInfo.WriteString(postalcode);
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteStartElement("Email");
              xmlCompanyInfo.WriteString(email);
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteStartElement("Address");
              xmlCompanyInfo.WriteString(address);
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteStartElement("Copyright");
              xmlCompanyInfo.WriteString(copyright);
              xmlCompanyInfo.WriteEndElement();

              xmlCompanyInfo.WriteEndElement();
              xmlCompanyInfo.Close();

          }
          catch (XmlException e)
          {
              return false;
          }
          finally
          {
              //if (xmlCompanyInfo != null)
                  /**/////xmlCompanyInfo.Close();
          }
          return true;
      }
    }
}

上面是对下面xml文件进行读写：

<?xml version="1.0" encoding="gb2312"?>
<Company>
   <Name />
   <InternetAdress />
   <BriefIntroduction />
   <Tel>
      <TelFirst />
      <TelSecond />
      <TelMobile />
   </Tel>
   <Postalcode />
   <Email />
   <Address />
   <Copyright />
</Company>