DataGrid loading XML data in C #

 protected System.Web.UI.WebControls.DataGrid Dgaddinfo;
  public String xmlfilename = "Zph.xml";
  private void Page_Load (object sender, System.EventArgs e)
  {
   //    datagriddatabind ();
   
   if (! IsPostBack)
   {
    dataload ("ID");
  &NBSP}
  }

   #region
  private void Dataload (string sortstring)
  {
    //string XMLfileName = @ "C:/inetpub/wwwroot/zhaopinhui/zph.xml";
   dataset ds = new DataSet ();
   filestream FS = new FileStream (Server.MapPath (XMLfileName), FileMode.Open);
   ds. READXML (FS);
   if (ds. Tables.count = = 0)
   {
    ds. Tables.add (Makezphtable ());
   }
   trace.warn ("rowcount1=", Convert.ToString (DS). Tables[0]. Rows.Count));

DataView dv =new DataView (ds. Tables[0]);
if (sortstring.length>0)
{
Dv. Sort = sortstring;
}
This.dgAddInfo.DataSource = DV;
This.dgAddInfo.DataBind ();
Fs. Close ();
}
#endregion

#region Create a Job fairs table
Private DataTable makezphtable ()
{
DataTable thetable = new DataTable ("Zph");

DataColumn theColumn1 = new DataColumn ();
Thecolumn1.datatype = System.Type.GetType ("System.Int32");
Thecolumn1.columnname = "ID";
THETABLE.COLUMNS.ADD (THECOLUMN1);

DataColumn theColumn2 = new DataColumn ();
Thecolumn2.datatype = System.Type.GetType ("System.Int32");
Thecolumn2.columnname = "Zphid";
THETABLE.COLUMNS.ADD (THECOLUMN2);

DataColumn theColumn3 = new DataColumn ();
Thecolumn3.datatype = System.Type.GetType ("System.String");
Thecolumn3.columnname = "Title";
THETABLE.COLUMNS.ADD (THECOLUMN3);

DataColumn theColumn4 = new DataColumn ();
Thecolumn4.datatype = System.Type.GetType ("System.String");
Thecolumn4.columnname = "Content";
THETABLE.COLUMNS.ADD (THECOLUMN4);

DataColumn theColumn5 = new DataColumn ();
Thecolumn5.datatype = System.Type.GetType ("System.DateTime");
Thecolumn5.columnname = "Date";
THETABLE.COLUMNS.ADD (THECOLUMN5);

DataColumn theColumn6 = new DataColumn ();
Thecolumn6.datatype = System.Type.GetType ("System.String");
Thecolumn6.columnname = "Time";
THETABLE.COLUMNS.ADD (THECOLUMN6);

DataColumn theColumn7 = new DataColumn ();
Thecolumn7.datatype = System.Type.GetType ("System.String");
Thecolumn7.columnname = "Num";
THETABLE.COLUMNS.ADD (THECOLUMN7);

   datacolumn theColumn8 = new DataColumn ();
   thecolumn8.datatype = System.Type.GetType ("System.String");
   thecolumn8.columnname = "place";
   thetable.columns.add (THECOLUMN8);
   return thetable;
  }