//using System.Data.OleDb;
OleDbConnection myConn;
DataView dbRec;

private void gridtst_Load(object sender, EventArgs e)
{ // my document path
	string MDB = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\db.mdb";

	try
	{ //OleDbConnection
		myConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" + MDB);
		myConn.Open();

		//DB Set
		DataSet dSet = new DataSet("DataBase");
		OleDbDataAdapter dAdapt = new OleDbDataAdapter("select * from TBL", myConn);
		dAdapt.Fill(dSet);
		DataTable dTab = dSet.Tables[0];
		//Data Source
		dbRec = new DataView(dTab);
		//grid
		GD.DataSource = dbRec;
		GD.Columns[0].Width = 40;
		GD.Columns[1].HeaderText = "BB";
		//close
		myConn.Close();
	}
	catch (Exception ex)
	{ //Error Message
		MessageBox.Show(ex.ToString());
	}
}