using System.Data;
using System.Data.OleDb;
OleDbConnection conn = new OleDbConnection("PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source=" +System.Web.HttpContext.Current.Server.MapPath("~/app_data/data.mdb"));
conn.Open();
OleDbCommand comm = new OleDbCommand("select * from b_articles where Cid=18",conn);
OleDbDataAdapter da = new OleDbDataAdapter(comm);
DataSet ds = new DataSet();
da.Fill(ds, "product");
data_articles.DataSource = ds.Tables["product"].DefaultView;
data_articles.DataBind();