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Using foreach statement with DataRow in 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);             int j = 0;             foreach (DataRow row in dt.Rows)             {                 j++;                 Console.WriteLine("Row = {0}\tContactID = {1}\tFirstName = {2}\tLastName = {3}", j, row[0], row["FirstName"],row["LastName", DataRowVersion.Default]);             }         }     }