using System; using System.Collections.Generic; using System.Text; using System.Data; using System.Data.OleDb; namespace ConsoleApplication1 {     class Program     {         static void Main(string[] args)         {             OleDbConnection conn = new OleDbConnection();             OleDbCommand comm = new OleDbCommand();             OleDbDataReader dr=null;             conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + System.Environment.CurrentDirectory + "\\SimpleNews.mdb";             comm.Connection = conn;             comm.CommandText = "select * from [login]";             try             {                 conn.Open();                 dr = comm.ExecuteReader();                 while (dr.Read())                 {                     for (int i = 0; i < dr.FieldCount; i++)                         Console.Write(dr.GetValue(i) + "  ");                     Console.WriteLine("");                     //dr.Close();                 }                 dr.Close();             }             catch (Exception err)             {                 Console.WriteLine(err.Message);             }             finally             {                 comm = null;                 conn.Close();                 comm = null;                 Console.ReadKey();             }         }     } }