XML 操作

using    System;   
   using    System.Xml;   
    
   namespace    Common   
   {   
  /**////   <summary>   
  ///   Config   的摘要说明。   
  ///   </summary>   
  public   class   Config   
  {   
  private   String   msFileName   =   null;   
    
  public   String   ConfigFile   
  {   
  get   
  {   
  return   this.msFileName;   
  }   
  set   
  {   
  if(System.IO.File.Exists(value.Trim()))   
  {   
  this.msFileName   =   value.Trim();   
  }   
  }   
  }   
    
  public   Config()   
  {   
  this.msFileName   =   String.Empty;   
  }   
    
  public   Config(String   ConfigFile)   
  {   
  this.ConfigFile   =   ConfigFile.Trim();   
  }   
    
  public   bool   ReadConfig(String   ContentName,   out   String   ContentValue)   
  {   
  bool   bFlag   =   false;   
    
  ContentValue   =   String.Empty;   
    
  if(!System.IO.File.Exists(this.msFileName))   
  {   
  return   bFlag;   
  }   
    
                          try   
                          {   
                                  System.Xml.XmlDocument   xmlDoc   =   new   System.Xml.XmlDocument();   
                                  xmlDoc.Load(this.msFileName);   
                                  System.Xml.XmlNode   xmlNode   =   xmlDoc.SelectSingleNode(ContentName);   
                                  ContentValue   =   xmlNode.InnerText;   
    
                                  bFlag   =   true;   
                          }   
                          catch   (XmlException   xmle)   
                          {   
                                  System.Console.WriteLine(xmle.Message);   
                          }   
    
  return   bFlag;   
  }   
    
  public   bool   ReadConfig(String   ContentName,   String   PropertyName,   out   String   PropertyValue)   
  {   
  bool   bFlag   =   false;   
    
  PropertyValue   =   String.Empty;   
    
  if(!System.IO.File.Exists(this.msFileName))   
  {   
  return   bFlag;   
                          }   
    
                          try   
                          {   
                                  XmlDocument   xmlDoc   =   new   XmlDocument();   
                                  xmlDoc.Load(this.msFileName);   
    
                                  XmlNode   xmlNode   =   xmlDoc.SelectSingleNode(ContentName);   
    
                                  XmlAttributeCollection   xmlAttr   =   xmlNode.Attributes;   
    
                                  for(int   i=0;   i<xmlAttr.Count;   ++i)   
                                  {   
                                          if   (xmlAttr.Item(i).Name   ==   PropertyName)   
                                          {   
                                                  PropertyValue   =   xmlAttr.Item(i).Value;   
                                                  bFlag   =   true;   
                                                  break;   
                                          }   
                                  }   
                          }   
                          catch   (XmlException   xmle)   
                          {   
                                  System.Console.WriteLine(xmle.Message);   
                          }   
    
  return   bFlag;   
                  }   
    
                  public   bool   WriteConfig(String   ContentName,   String   ContentValue)   
                  {   
                          bool   bFlag   =   false;   
    
                          if   (!System.IO.File.Exists(this.msFileName))   
                          {   
                                  return   bFlag;   
                          }   
    
                          try   
                          {   
                                  System.Xml.XmlDocument   xmlDoc   =   new   System.Xml.XmlDocument();   
                                  xmlDoc.Load(this.msFileName);   
                                  System.Xml.XmlNode   xmlNode   =   xmlDoc.SelectSingleNode(ContentName);   
                                  xmlNode.InnerText   =   ContentValue;   
    
                                  xmlDoc.Save(this.msFileName);   
    
                                  bFlag   =   true;   
                          }   
                          catch   (XmlException   xmle)   
                          {   
                                  System.Console.WriteLine(xmle.Message);   
                          }   
    
                          return   bFlag;   
                  }   
    
                  public   bool   WriteConfig(String   ContentName,   String   PropertyName,   String   PropertyValue)   
                  {   
                          bool   bFlag   =   false;   
    
                          if   (!System.IO.File.Exists(this.msFileName))   
                          {   
                                  return   bFlag;   
                          }   
    
                          try   
                          {   
                                  XmlDocument   xmlDoc   =   new   XmlDocument();   
                                  xmlDoc.Load(this.msFileName);   
    
                                  XmlNode   xmlNode   =   xmlDoc.SelectSingleNode(ContentName);   
    
                                  XmlAttributeCollection   xmlAttr   =   xmlNode.Attributes;   
    
                                  for   (int   i   =   0;   i   <   xmlAttr.Count;   ++i)   
                                  {   
                                          if   (xmlAttr.Item(i).Name   ==   PropertyName)   
                                          {   
                                                  xmlAttr.Item(i).Value   =   PropertyValue;   
                                                  bFlag   =   true;   
                                                  break;   
                                          }   
                                  }   
    
                                  xmlDoc.Save(this.msFileName);   
    
                                  bFlag   =   true;   
                          }   
                          catch   (XmlException   xmle)   
                          {   
                                  System.Console.WriteLine(xmle.Message);   
                          }   
    
                          return   bFlag;   
                  }   
  }   
  }