在视图中将值设置为DropDownListFor中的项

Question

我有这个：

<div class="editor-field">
        <%: Html.DropDownListFor(m => m.Language, new SelectList(new[] { "string1", "string2", "string3", "string4" }, "string1"))%>
</div>

我希望字符串有一些值。例如，string1，有一个值= 1，string2：value = 2，等等。如何做到这一点？

Answer 1

只需使用

new List<SelectListItem>(){ new SelectListItem{Text="item1", Value = "valuer1", ... }

或使用SelectList但传入其中Dictionary或List＆lt;＆gt;自定义对象。

Answer 2

静态绑定

public class HomeController : Controller
    {
        public ActionResult Index()
        {
            ViewBag.Message = "Welcome to the Training Courses...";
            List objcourses = new List();
            objcourses.Add("Asp.Net");
            objcourses.Add("MVC");
            objcourses.Add("WCF");
            objcourses.Add("WPF");
            objcourses.Add("C#.Net");
            ViewBag.Courses = new SelectList(objcourses);
            return View();
        }
    }

@{
ViewBag.Title = "Home Page";
}
Index
@using(@Html.BeginForm(“Index”,”Home”,FormMethod.Get)) {
Courses List; @Html.DropDownList(“Courses“)
}

动态绑定

public class HomeController : Controller
    {
        public ActionResult Index()
        {
            private MovieDBContext db = new MovieDBContext();
            var GenreLst = new List();
            var GenreQry = from d in db.Movies
                           orderby d.Genre
                           select d.Genre;
            GenreLst.AddRange(GenreQry.Distinct());
            ViewBag.Courses = new SelectList(GenreLst);
            return View();
        }
    }
@{
    ViewBag.Title = "Home Page";
}
Index

@using(@Html.BeginForm("Index","Home",FormMethod.Get)) {

Courses List; @Html.DropDownList("Courses")
}