OleDbDataAdapter myAdapter = new OleDbDataAdapter(strOleDb,strConnection);
    //OleDbCommand myCommand = new OleDbCommand(strOleDb,strConnection);
    myAdapter.Fill(myDataSet,"cars");

    //架构表示形式
    myDataSet.WriteXmlSchema(Server.MapPath("cars.xsd"));

    //XML数据窗体关系数据
    myDataSet.WriteXml(Server.MapPath("cars1.xml"),XmlWriteMode.IgnoreSchema);

    //为数据集创建XmlDataDocument
    XmlDataDocument datadoc = new XmlDataDocument(myDataSet);

    //保存XML
    datadoc.Save(Server.MapPath("cars.xml"));             

    Response.Write("<a href = 'cars.xml'>cars.xml</a>");
    //Response.Write("<br><a href = 'cars1.xml'>cars1.xml</a>");
    //Response.Write("<br><a href = 'cars.xsd'>cars.xsd</a>");
   }
   catch
   {
    Response.Write("加载数据集失败！");
    
   }
  }