一个超级简单的方法来做到这一点-没有所有的扩展似乎过度的东西是:

你的枚举:

    public enum SelectedLevel
    {
       Level1,
       Level2,
       Level3,
       Level4
    }

在你的控制器内部，将Enum绑定到一个List:

    List<SelectedLevel> myLevels = Enum.GetValues(typeof(SelectedLevel)).Cast<SelectedLevel>().ToList();

然后把它扔进ViewBag:

    ViewBag.RequiredLevel = new SelectList(myLevels);

最后简单地将它绑定到视图:

    @Html.DropDownList("selectedLevel", (SelectList)ViewBag.RequiredLevel, new { @class = "form-control" })

这是迄今为止我发现的最简单的方法，不需要任何扩展或任何疯狂的东西。

更新:见安德鲁斯下面的评论。

这个扩展方法的另一个修复-当前版本没有选择枚举的当前值。我修正了最后一行:

public static SelectList ToSelectList<TEnum>(this TEnum enumObj) where TEnum : struct
    {
        if (!typeof(TEnum).IsEnum) throw new ArgumentException("An Enumeration type is required.", "enumObj");

        var values = from TEnum e in Enum.GetValues(typeof(TEnum))
                       select new
                       {
                           ID = (int)Enum.Parse(typeof(TEnum), e.ToString()),
                           Name = e.ToString()
                       };


        return new SelectList(values, "ID", "Name", ((int)Enum.Parse(typeof(TEnum), enumObj.ToString())).ToString());
    }

在。net Core中，你可以这样做:

@Html.DropDownListFor(x => x.Foo, Html.GetEnumSelectList<MyEnum>())

在MVC4中，我会这样做

@Html.DropDownList("RefType", new SelectList(Enum.GetValues(typeof(WebAPIApp.Models.RefType))), " Select", new { @class = "form-control" })

public enum RefType
    {
        Web = 3,
        API = 4,
        Security = 5,
        FE = 6
    }

    public class Reference
    {
        public int Id { get; set; }
        public RefType RefType { get; set; }
    }

我想以一种不同的方式回答这个问题，用户不需要在控制器或Linq表达式中做任何事情。这种方式……

我有一个ENUM

public enum AccessLevelEnum
    {
        /// <summary>
        /// The user cannot access
        /// </summary>
        [EnumMember, Description("No Access")]
        NoAccess = 0x0,

        /// <summary>
        /// The user can read the entire record in question
        /// </summary>
        [EnumMember, Description("Read Only")]
        ReadOnly = 0x01,

        /// <summary>
        /// The user can read or write
        /// </summary>
        [EnumMember, Description("Read / Modify")]
        ReadModify = 0x02,

        /// <summary>
        /// User can create new records, modify and read existing ones
        /// </summary>
        [EnumMember, Description("Create / Read / Modify")]
        CreateReadModify = 0x04,

        /// <summary>
        /// User can read, write, or delete
        /// </summary>
        [EnumMember, Description("Create / Read / Modify / Delete")]
        CreateReadModifyDelete = 0x08,

        /*/// <summary>
        /// User can read, write, or delete
        /// </summary>
        [EnumMember, Description("Create / Read / Modify / Delete / Verify / Edit Capture Value")]
        CreateReadModifyDeleteVerify = 0x16*/
    }

现在我可以使用这个enum简单地创建一个下拉列表。

@Html.DropDownList("accessLevel",new SelectList(AccessLevelEnum.GetValues(typeof(AccessLevelEnum))),new { @class = "form-control" })

OR

@Html.DropDownListFor(m=>m.accessLevel,new SelectList(AccessLevelEnum.GetValues(typeof(AccessLevelEnum))),new { @class = "form-control" })

如果你想让一个索引被选中，那么试试这个

@Html.DropDownListFor(m=>m.accessLevel,new SelectList(AccessLevelEnum.GetValues(typeof(AccessLevelEnum)) , AccessLevelEnum.NoAccess ),new { @class = "form-control" })

这里我使用了AccessLevelEnum。NoAccess作为默认选择下拉菜单的额外参数。

使用Prise的扩展方法来解决获取数字而不是文本的问题。

public static SelectList ToSelectList<TEnum>(this TEnum enumObj)
{
  var values = from TEnum e in Enum.GetValues(typeof(TEnum))
               select new { ID = (int)Enum.Parse(typeof(TEnum),e.ToString())
                         , Name = e.ToString() };

  return new SelectList(values, "Id", "Name", enumObj);
}