【C#】dataset导出xml（xslt）源码

 

 一、用StreamWriter 来实现

 导出Xml#region 导出Xml
  private bool ExportXml1(string FilePath)
  ...{
   DataSet ds=new DataSet();
   try
   ...{    
    DataTable tb = (DataTable)this.ExportGrid.DataSource;
    DataTable ExportTb=tb.Copy();
    //DataTable ExportTb=new DataTable();

    ds.Tables.Add(ExportTb);     
    string path=Constant.ApplicationDirectory+"/xml/Xyh.xslt";
    string s="<?xml version="1.0" encoding="utf-8" ?>"+" "+"<?xml-stylesheet href=""+path+"" _fcksavedurl="""+path+""" type="text/xsl"?>"+" ";
    //string s="<?xml version="1.0" encoding="UTF-8" ?>"+" "+"<?xml-stylesheet href="aa.xsl" type="text/xsl"?>"+" ";
    s=s+ds.GetXml().ToString(); 
    Stream stream =File.OpenWrite(FilePath+".xml"); 
    using(StreamWriter writer =new StreamWriter(stream)) 
    ...{ 
     writer.Write(s); 
    } 

    //ds.WriteXml(FilePath+".xml");
    this.ParentWindow.Cursor=Cursors.Default;
   }
   catch
   ...{
    MessageBox.Show("保存出错,请检查!");
    return false;
   }
   finally
   ...{
    //GC.Collect();
    //    ds.Clear();
    //    ds.Dispose();    
   }
   return true;
  } 
  #endregion

二、用 XmlTextWriter 来实现，这样可以格式化字段。

  导出Xml#region 导出Xml
  private void ExportXml(string FilePath)
  ...{
   string path=Constant.ApplicationDirectory+"/xml/Xyh.xslt";   
   string  PItext   ="type='text/xsl' href='"+path+"'";   
   DataSet ds=new DataSet();
   DataTable tb = (DataTable)this.ExportGrid.DataSource;
   DataTable ExportTb=tb.Copy();
   ds.Tables.Add(ExportTb);   
   XmlTextReader XTReader = new XmlTextReader(ds.GetXml(),XmlNodeType.Element,null);
   XmlTextWriter XTWriter = new XmlTextWriter(FilePath+".xml",Encoding.UTF8);   
   XTWriter.WriteStartDocument();
    XTWriter.WriteProcessingInstruction("xml-stylesheet",PItext);
   string fieldName = "" ;
   while(XTReader.Read())
   ...{
    switch(XTReader.NodeType)
    ...{
     case XmlNodeType.Element:
      XTWriter.WriteStartElement(XTReader.Name);
      fieldName = XTReader.Name;
      break;      
     case XmlNodeType.Text:      
      if(fieldName.ToLower() == "brithday"||fieldName.ToLower() == "gzsj"||fieldName.ToLower() == "rdsj"||fieldName.ToLower() == "zzsj")
      ...{      
       DateTime dt = DateTime.Parse (XTReader.Value.ToString());      
       XTWriter.WriteString(dt.ToString("yyyy-MM-dd"));
      }
      else
       XTWriter.WriteString(XTReader.Value);
      break;
     case XmlNodeType.EndElement:
      XTWriter.WriteEndElement();
      break;
     default:      
      break;
    }
   }
   XTWriter.Close(); 
   this.ParentWindow.Cursor=Cursors.Default;
  } 
  #endregion