Perform search by date in a bd on asp.net

I'm doing a web in ASP.NET MVC 5 that shows a list of people, currently only shows the ones that are in that day, but since the bd stores every day I want to create a view that is history style that they put the day that they want to show and that this makes that query in the database but for more that I look for I can not find how to do so that from the view they send a date and this update the view with the results of that day.

I have two models

public class Articulo
    {
        public string Nombre { get; set;  }
        public int Id{ get; set; }
        public string Comentario { get; set; }
        public DateTime Fecha { get; set; }
    }


  public List<Articulo> RecuperarHistorial(DateTime fecha)
        {
            Conectar();
            List<Articulo> articulos = new List<Articulo>();
            fechacomp = fecha.ToString("yyyy-MM-dd");

            NpgsqlCommand com = new NpgsqlCommand("select * From registro where fecha = '" + fechacomp + "';", con);
            con.Open();
            NpgsqlDataReader registros = com.ExecuteReader();
            while (registros.Read())
            {
                Articulo art = new Articulo
                {

                    Nombre = registros["nombre"].ToString(),
                    Id = int.Parse(registros["id"].ToString()),
                    Comentario = registros["comentario"].ToString(),
                    Fecha = DateTime.Parse(registros["fecha"].ToString()),
                };
                articulos.Add(art);
            }
            con.Close();
            return articulos;
        }

and I want to create a view that can send the date to that query but I do not know how to do it but as it is a list it did not work and I am totally lost