OleDbConnection con = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data source=c:\\txl.mdb");
            con.Open();
            string sql = "select * from stuff";
            OleDbDataAdapter da = new OleDbDataAdapter(sql, con);
            ds = new DataSet();
            da.Fill(ds, "stuff");//填充到ds
            dataGridView1.DataSource = ds.Tables["stuff"];

------解决方案--------------------
DataSet dataset = new DataSet();
OleDbConnection conn = new OleDbConnection(connection);
OleDbDataAdapter adapter = new OleDbDataAdapter();
adapter.SelectCommand = new OleDbCommand(query, conn);
adapter.Fill(dataset);


------解决方案--------------------
你用DataSet去接数据就行了

需要你手动封装吗