3 dropdown list to choose the date of birth.

<%= Html.DropDownList("month", Enumerable.Range(1, 12).Select(i => new SelectListItem { Value = i.ToString(), Text = System.Globalization.CultureInfo.InvariantCulture.DateTimeFormat.GetMonthName(i)}), "-- Month --") %>

          <%= Html.DropDownList("day", Enumerable.Range(1, 31).Select(i => new SelectListItem { Value = i.ToString(), Text = i.ToString()}), "-- Day --") %>

                    <%= Html.DropDownList("year", Enumerable.Range(1920, n+1).Select(i => new SelectListItem { Value = i.ToString(), Text = i.ToString()}), "-- Year --")%>