// @nuget: Microsoft.SqlServer.Compact

// @nuget: Z.EntityFramework.Classic

// @nuget: Z.EntityFramework.Classic.SqlServerCompact

​

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        // Custom configuration specific for .NET Fiddle

            var ClientId = "your_client_id_here";

            var ClientSecret = "your_client_secret_here";

            var token = "{ClientId}:{ClientSecret}";

            var tokenBytes = Encoding.ASCII.GetBytes(token);

            var encoded = Convert.ToBase64String(tokenBytes);

    }

}