using System;

public class Program

{

​

    public static void Main()

    {

System.Data.Common.DbConnectionStringBuilder builder = new System.Data.Common.DbConnectionStringBuilder();

​

builder.ConnectionString = "Server=<server>;Port=<databasePort>;Database=<databasename>;User Id=<userid>;Password=<password>;";

builder.ConnectionString = "Data Source=(localdb)\\MSSQLLocalDB;Initial Catalog=<catalog>;Integrated Security=True;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False;ApplicationIntent=ReadWrite;MultiSubnetFailover=False";

builder.ConnectionString = "DATA SOURCE=<server>;PERSIST SECURITY INFO=True;USER ID=<user>;PASSWORD=<password>;";

​

string server = builder["Server"] as string;

string database = builder["Database"] as string;

​

        Console.WriteLine(server);

        Console.WriteLine(database);

​

    }

}