Returning Typed DataSet - missing Row

[Joe]

Hi

I have a Typed Dataset (TDS) and am using the derived class. I wrote a
wrapper Class
around the TDS class to manipulate the class {Add,Delete, return Dataset
etc} - All is fine except when I add a record
If I step thru the code the record is added to the TDS but when I return a
reference to that TDS to the calling pgm
the row is missing

I see the new record when I kill the pgm and start up again because after I
add to the TDS I save to XML - but why when I return
the DataSet thru a Method the row is missing is escaping me

What am I missing here ???

Thanks

public class Engine

{

Schedule schedule; //My Typed DataSet Class

public void Init()

{

schedule = new Schedule();
}

public void AddRow(Schedule.TableRow dr)

{

//Add Row to DataTable and save to XML DB

schedule.MyTable.AddTableRow(dr);

Save();

}
public void Save()

{

schedule.AcceptChanges();

schedule.WriteXml(sXMLFile);

}

public DataSet DS() //If I Debug here the DataSet has the row
but the calling PGM doen not get the new row

{

return(schedule);

}

public DataTable GetMyTable() //If I Debug here the DataSet
has the row but the calling PGM doen not get the new row

{

return (schedule.MyTable);

}
}