using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;

namespace 表格处理
{
    public partial class Form1 : Form
    {
        OleDbConnection conn = new OleDbConnection();
        OleDbCommand comm = new OleDbCommand();
        OleDbDataAdapter adapter = new OleDbDataAdapter();
        DataSet ds = new DataSet();
        public Form1()
        {
            InitializeComponent();
            conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=studentinfo.mdb";
            conn.Open();
            comm.Connection = conn;
             = "select * from studentinfo where '分数'>75";
            adapter.SelectCommand = comm;
            OleDbCommandBuilder builder = new OleDbCommandBuilder(adapter);
        }
        private void Form1_Load(object sender, EventArgs e)
        {
        }

        private void button1_Click(object sender, EventArgs e)
        {
            ds.Clear();
            adapter.Fill(ds, "good");
            d1.DataSource = ds.Tables["good"];
        }

        private void button2_Click(object sender, EventArgs e)
        {
            adapter.Update(ds, "good");
        }
 
    }
}
注：在adapter.Fill(ds,"good")这儿提示 ：标准表达式中数据类型不匹配。