隐式枚举到core2.1剃须刀页面中的下拉列表

Question

i have the following enum

public class Blog {

   public enum BlogType {
     Article,
     News
   }

}

i want to convert it to drop down list, but i get error : Cannot implicitly convert type 'Blog.BlogType' to 'System.Collections.Generic.IEnumerable

my code :

IList<SelectListItem> list = Enum.GetValues(typeof(Blog.BlogType))
.Cast<Blog.BlogType>()
.Select(x => new SelectListItem { Text = x.ToString(), Value = ((int)x).ToString() })
.ToList();

SelectList data = new SelectList(list, "Value", "Text");

i tried several solutions but i got the same issue..

thanks ..

Answer 1

The easiest way to do this is to use the Html.GetEnumSelectList<TEnum> method in a select tag helper:

<select asp-for="BlogType" asp-items="Html.GetEnumSelectList<BlogType>()">
    <option value="">Pick one</option>
</select>

See more about using the select tag helper and enumerations in Razor Pages here: https://www.learnrazorpages.com/razor-pages/tag-helpers/select-tag-helper#enumerations

Answer 2

试试这个代码

  Html.DropDownListFor(o => o.EnumProperty, Enum.GetValues(typeof(Blog)).Cast<Blog>().Select(x => new SelectListItem { Text = x.ToString(), Value = ((int)x).ToString() }))