How to change the default root name created by write xml method?

 Hi all,
 
Here is how my code looks like.
                EstablishConnection();
                addStoredProcedure();

                ////reader = command.ExecuteReader();
                rdr = new SqlDataAdapter(command);
                dt = new DataTable();
                dt.TableName = "Investment";
                dt.BeginLoadData();
          &nbs ...