Accessing FirstName value in row 3 directly : DataTable « ADO.Net « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. ADO.Net
3. DataTable

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 ContactID, FirstName, LastName FROM Person.Contact";

            SqlDataAdapter da = new SqlDataAdapter(sqlSelect, sqlConnectString);

            DataTable dt = new DataTable( );
            da.Fill(dt);

            Console.WriteLine("FirstName = {0}", dt.Rows[2][1]);
            Console.WriteLine("FirstName = {0}", dt.Rows[2]["FirstName"]);
            Console.WriteLine("FirstName = {0}",dt.Rows[2]["FirstName", DataRowVersion.Default]);
            Console.WriteLine("FirstName = {0}", dt.Rows[2][dt.Columns[1]]);
            Console.WriteLine("FirstName = {0}",dt.Rows[2][dt.Columns["FirstName"]]);

            Console.WriteLine("FirstName = {0}",dt.Rows[2].Field<string>(1));
            Console.WriteLine("FirstName = {0}",dt.Rows[2].Field<string>("FirstName"));
            Console.WriteLine("FirstName = {0}",dt.Rows[2].Field<string>("FirstName", DataRowVersion.Default));
            Console.WriteLine("FirstName = {0}",dt.Rows[2].Field<string>(dt.Columns[1]));
            Console.WriteLine("FirstName = {0}",dt.Rows[2].Field<string>(dt.Columns["FirstName"]));

        }
    }