public static DataSet ExecuteTextRet(string cmdText, string TableName)
        {
            DataSet ds = new DataSet();
            OleDbDataAdapter adp = new OleDbDataAdapter();
            OleDbCommand cmd = new OleDbCommand();
            try
            {
                PrepareCommand(cmd, CommandType.Text, cmdText);
                try
                {
                    adp.SelectCommand = cmd;
                    adp.Fill(ds, TableName);
                    return ds;
                }
                catch (OleDbException e)
                {
                    throw (new Exception(e.Message));
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                DisposeCmd(cmd);
            }

        }