using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Data.OleDb; using System.Configuration; namespace 数据 { public partial class Form1 : Form { OleDbConnection conn; OleDbConnection conn1 = new OleDbConnection(ConfigurationSettings.AppSettings["conn1"]); public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { conn = new OleDbConnection(ConfigurationSettings.AppSettings["conn"]); OleDbDataAdapter da = new OleDbDataAdapter("select * from grxx", conn);
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
using System.Configuration;
namespace 数据
{
public partial class Form1 : Form
{
OleDbConnection conn;
OleDbConnection conn1 = new OleDbConnection(ConfigurationSettings.AppSettings["conn1"]);
public Form1()
{ InitializeComponent();
} private void button1_Click(object sender, EventArgs e)
{
conn = new OleDbConnection(ConfigurationSettings.AppSettings["conn"]);
OleDbDataAdapter da = new OleDbDataAdapter("select * from grxx", conn);
DataSet ds = new DataSet();
da.Fill(ds);
dataGridView1.DataSource = ds.Tables[0];
}