// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002754/dbconnection-executeentity

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.Data;

using System.Data.SqlClient;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

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

        var dict = new Dictionary<string, object> {{"@Fizz", 1}};

​

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

        {

            conn.Open();

            //C# Extension Method: DbConnection - ExecuteEntity

            var obj = conn.ExecuteEntity<TestObject>(sql, dict.ToDbParameters(conn));

            FiddleHelper.WriteTable(new List<TestObject>(){obj});

        }

    }

    public class TestObject

    {

        public int IntColumn;

        public int IntColumnNotExists = -1;

        public string StringColumnNotExists;

        public string StringColumn { get; set; }

    }

}