将类设置为Html.DropDownListFor（Razor MVC）

Question

我有DropDownList

                    @Html.DropDownListFor(model => model.English, new[]
                {
                    new SelectListItem() {Text = "Beginner", Value = "Beginner"},
                    new SelectListItem() {Text = "Pre-Intermediate", Value = "Pre-Intermediate"},
                    new SelectListItem() {Text = "Intermediate", Value = "Intermediate"},
                    new SelectListItem() {Text = "Upper-Intermediate", Value = "Upper-Intermediate"},
                    new SelectListItem() {Text = "Advanced", Value = "Advanced"},
                    new SelectListItem() {Text = "Proficiency", Value = "Proficiency"}
                }, "Уровень английского")

我需要设置课程。 我该怎么做？ new{@class="class"}无效。

Answer 1

这样尝试

 @Html.DropDownListFor(model => model.English, new[]
            {
                new SelectListItem() {Text = "Beginner", Value = "Beginner"},
                new SelectListItem() {Text = "Pre-Intermediate", Value = "Pre-Intermediate"},
                new SelectListItem() {Text = "Intermediate", Value = "Intermediate"},
                new SelectListItem() {Text = "Upper-Intermediate", Value = "Upper-Intermediate"},
                new SelectListItem() {Text = "Advanced", Value = "Advanced"},
                new SelectListItem() {Text = "Proficiency", Value = "Proficiency"}
            }, "Уровень английского",new{@class="dropdown"})

Answer 2

你有这样尝试过吗？ 请参阅文档。

@Html.DropDownListFor(model => model.English, new[]
{
    new SelectListItem() {Text = "Beginner", Value = "Beginner"},
    new SelectListItem() {Text = "Pre-Intermediate", Value = "Pre-Intermediate"},
    new SelectListItem() {Text = "Intermediate", Value = "Intermediate"},
    new SelectListItem() {Text = "Upper-Intermediate", Value = "Upper-Intermediate"},
    new SelectListItem() {Text = "Advanced", Value = "Advanced"},
    new SelectListItem() {Text = "Proficiency", Value = "Proficiency"}
}, "Уровень английского", new { @class = "class" })

Answer 3

尝试这种格式，这是最简单的通用代码，我们可以随时访问

Common.cs：

public static List<SelectListItem> LearnerSkill()
    {
           List<SelectListItem> list = new List<SelectListItem>();
           list.Add(
            new SelectListItem() {Text = "Beginner", Value = "Beginner"},
            new SelectListItem() {Text = "Pre-Intermediate", Value = "Pre-Intermediate"},
            new SelectListItem() {Text = "Intermediate", Value = "Intermediate"},
            new SelectListItem() {Text = "Upper-Intermediate", Value = "Upper-Intermediate"},
            new SelectListItem() {Text = "Advanced", Value = "Advanced"},
            new SelectListItem() {Text = "Proficiency", Value = "Proficiency"});
           return list;
    }

Index.cshtml：

@Html.DropDownList("DropdownID_or_NAME", Common.LearnerSkill(), new { @class="classname"})

(or)

@Html.DropDownListFor(model=>model.English, Common.LearnerSkill(), new { @class="classname"})