title: Cannot find column 2
body: <pre><code>private void btnmap_Click(object sender, EventArgs e)
  {               
     XmlDocument xmldoc = new XmlDocument();                
     con = new System.Data.SqlClient.SqlConnection();
     ds = new DataSet();
     con.ConnectionString = @"Server=MDS-SW02; User ID=sa; Pwd=Admin2011;Initial Catalog=xml;";
     con.Open();
     MessageBox.Show("Database Connected");                
     String sql = "select Pdf_tag,Styles from Xml_Tags";              
     com = new SqlCommand(sql);           
     da = new System.Data.SqlClient.SqlDataAdapter(sql,con);             
     da.Fill(ds, "xml");                
     maxrows = ds.Tables["xml"].Rows.Count;
     StreamReader objReader = new StreamReader(file,Encoding.Default,true);
  
     do
     {                                           
        string line = objReader.ReadLine();
        string st1 = "&gt;";
        string st2 = "&lt;/";
        int end = line.IndexOf(st2);
        if (end != -1 &amp;&amp; end &gt; 1)
        {
           st = line.IndexOf(st1);
           en = line.IndexOf(st2);
           int v = en - st;
           sub = line.Substring(st + 1, v - 1);                            
           rchtext.Text = rchtext.Text + sub + "\r\n"; 
        }                     
        for (int i = 0; i &lt; maxrows; i++)
        {
            dRow = ds.Tables["xml"].Rows[i];
            if(dRow[0].ToString ()==line)
            {
                //XmlDocument xmldoc = new XmlDocument();
                XmlNode docNode = xmldoc.CreateXmlDeclaration("1.0", "UTF-8", null);
                xmldoc.AppendChild(docNode);
                XmlNode xmlnode,xmlroot;
  
                String sqll = "select Dtd_Tag from Xml_Tags where Mapped_Tags_Attributes.Pdf_Tag=Xml_Tags.Pdf_Tag";
                SqlCommand comm = new SqlCommand(sqll);
                SqlDataAdapter daa = new System.Data.SqlClient.SqlDataAdapter(sqll, con);
                daa.Fill(ds1, "xml");
                dRow1 = ds1.Tables["xml"].Rows[i];
  
                string name = XmlConvert.EncodeName(dRow1.ItemArray.GetValue(0).ToString());
                xmlnode = xmldoc.CreateElement(name);
  
                XmlNode Doc = xmldoc.CreateDocumentType(name, null, "E:\\Rachana_mds\\proj\\pdfextraction\\docbook.dtd", null);
                xmldoc.AppendChild(Doc);
  
                xmlroot = xmldoc.CreateElement(dRow1.ItemArray.GetValue(0).ToString());
                xmldoc.AppendChild(xmlroot);             
  
                String sqlll = "select Dtd_Attribute_Name from Mapped_Tags_Attributes where Mapped_Tags_Attributes.Pdf_Tag=Xml_Tags.Pdf_Tag";
                SqlCommand cmd = new SqlCommand(sqlll);
                SqlDataAdapter dt = new System.Data.SqlClient.SqlDataAdapter(sqlll,con);
                dt.Fill(ds2, "xml");
                dRow2 = ds2.Tables["xml"].Rows[i];
  
                xmlroot = xmldoc.CreateElement(name);
                xmldoc.AppendChild(xmlroot);
                XmlAttribute xmlatt = xmldoc.CreateAttribute(dRow2.ItemArray.GetValue(0).ToString());                                              
                xmlroot.AppendChild(xmlnode);
                xmlnode.InnerText=sub;                       
              }                                                                
              while (objReader.Peek() != -1);
              //string filename = @"E:" + DateTime.Now.Day + DateTime.Now.Month + DateTime.Now.Minute + ".xml";
              string filename = @"E:\" + DateTime.Now.ToString("dd/mm/yyyy")+".xml";
              xmldoc.Save(filename); 
              MessageBox.Show("Done");
              con.Close();                                  
  }
  </code></pre>