ADO Net C# Tutorial

using System;
using System.Data;
using System.Data.SqlClient;
    class Program
    {
        static void Main(string[] args)
        {
            string sqlConnectString = "Data Source=(local);Integrated security=SSPI;Initial Catalog=AdventureWorks;";
            string sqlSelect = "SELECT TOP 1 value FROM SalesOrderDetail";
            SqlDataAdapter da = new SqlDataAdapter(sqlSelect, sqlConnectString);
            DataTable dt = new DataTable( );
            da.Fill(dt);
            foreach (DataRow row in dt.Rows)
                Console.WriteLine("SalesOrderDetailID = {0}, LineTotal = {1}, " +
                    "ExtendedPrice = {2}", row["SalesOrderDetailID"],
                    row["LineTotal"], row["ExtendedPrice"]);
        }
    }