ConnectionTest.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;

namespace DatabaseProject
{
  public class ConnectionTest
  {
    public void Test() {
      string connectionString = "server=localhost;DataBase=CourseDatabase;uid=sa;pwd=godoro";
      SqlConnection connection = new SqlConnection(connectionString);
      connection.Open();
      Console.WriteLine("Connected to SQL Server");
      connection.Close();
      Console.WriteLine("Disconnected from SQL Server");
    }
  }
}