using System;

using System.Data;

using System.Data.OleDb;

using System.Windows.Forms;



namespace WindowsApplication1

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        private void button1_Click(object sender, EventArgs e)

        {

            string connetionString = null;

            OleDbConnection connection ;

            OleDbDataAdapter oledbAdapter = new OleDbDataAdapter();

            DataSet ds = new DataSet();

            int i = 0;

            connetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Your mdb filename;";

            connection = new OleDbConnection(connetionString);

            try

            {

                connection.Open();

                oledbAdapter.SelectCommand = new OleDbCommand("Your SQL Statement Here", connection);

                oledbAdapter.Fill(ds);

                oledbAdapter.Dispose();

                connection.Close();

                for (i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)

                {

                    MessageBox.Show (ds.Tables[0].Rows[i].ItemArray[0].ToString());

                }

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.ToString());

            }

        }

    }

}