20 Nisan 2019, Cumartesi
Ana Sayfa / Programlama / Asp.Net / Create a dropdownlist from an enum in ASP.NET MVC?

Create a dropdownlist from an enum in ASP.NET MVC?

I’m trying to use the Html.DropDownList extension method but can’t figure out how to use it with an enumeration.

Let’s say I have an enumeration like this:

public enum ItemTypes
    Movie = 1,
    Game = 2,
    Book = 3

How do I go about creating a dropdown with these values using the Html.DropDownList extension method?

Or is my best bet to simply create a for loop and create the Html elements manually?

İçerik Özeti


For MVC v5.1 use Html.EnumDropDownListFor

    x => x.YourEnumField,
    "Select My Type", 
    new { @class = "form-control" })

For MVC v5 use EnumHelper

   EnumHelper.GetSelectList(typeof(MyType)) , 
   "Select My Type", 
   new { @class = "form-control" })

For MVC 5 and lower

I rolled Rune’s answer into an extension method:

namespace MyApp.Common
    public static class MyExtensions{
        public static SelectList ToSelectList<TEnum>(this TEnum enumObj)
            where TEnum : struct, IComparable, IFormattable, IConvertible
            var values = from TEnum e in Enum.GetValues(typeof(TEnum))
                select new { Id = e, Name = e.ToString() };
            return new SelectList(values, "Id", "Name", enumObj);

This allows you to write:

ViewData["taskStatus"] = task.Status.ToSelectList();

by using MyApp.Common

Buna da Göz Atın!

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