兄弟是学PB的吧?ASP.Net可不能这么写啊!!可以这样写;
 OleDbDataAdapter myDataAdapter = new OleDbDataAdapter();
   myDataAdapter.SelectCommand.CommandText = "SELECT * FROM Categories ORDER BY CategoryID";
   myDataAdapter.SelectCommand.Connection.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=NWIND_RW.MDB";