// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002778/idatareader-toentities

​

// @nuget: Z.ExtensionMethods

​

using System.Collections.Generic;

using System.Data;

using System.Data.Common;

using System.Data.SqlClient;

using System.Linq;

public class Program

{

    public static void Main()

    {

        string sql = "SELECT 1 AS IntColumn, 'FizzBuzz' AS StringColumn UNION SELECT 2, 'BuzzBuzz'";

​

        IEnumerable<TestObject> result;

        using (var conn = new SqlConnection(FiddleHelper.GetConnectionStringSqlServer()))

        {

            conn.Open();

            using (DbCommand command = conn.CreateCommand())

            {

                command.CommandText = sql;

                using (IDataReader reader = command.ExecuteReader())

                {                   

                    //C# Extension Method: IDataReader - ToEntities

                    result = reader.ToEntities<TestObject>();

                }

            }

        }

        List<TestObject> list = result.ToList();

        FiddleHelper.WriteTable(list);

    }

    public class TestObject

    {

        public int IntColumn { get; set; }

        public string StringColumn { get; set; }

    }

}