// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002797/sqlconnection-executescalar

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.Collections.Generic;

using System.Data;

using System.Data.SqlClient;

using System.Data.Common;

public class Program

{

    public static void Main()

    {

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

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

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

        {

            conn.Open();

            //C# Extension Method: SqlConnection - ExecuteScalar

            object result = conn.ExecuteScalar(sql, dict.ToSqlParameters());

            Console.WriteLine(result);

        }

    }

}