I have created an enum extension:
using System;
using System.ComponentModel;
namespace Shared.Enums.Extensions
{
public static class EnumExtensions {
// This extension method is broken out so you can use a similar pattern with
// other MetaData elements in the future. This is your base method for each.
public static T GetAttribute<T>(this Enum value) where T : Attribute {
var type = value.GetType();
var memberInfo = type.GetMember(value.ToString());
var attributes = memberInfo[0].GetCustomAttributes(typeof(T), false);
return attributes.Length > 0
? (T)attributes[0]
: null;
}
// This method creates a specific call to the above method, requesting the
// Description MetaData attribute.
public static string ToName(this Enum value) {
var attribute = value.GetAttribute<DescriptionAttribute>();
return attribute == null ? value.ToString() : attribute.Description;
}
}
}
This allows me to add an attribute to my enum members so I can get a nicely formatted string to represent the emum to a user, using the ToName() extension method:
public enum Rarity
{
[Description("One of a kind")]
OneOfAKind,
[Description("Rare Item")]
RareItem
}
// Then in my razor view
<dt>
@Html.DisplayNameFor(model => model.Rarity)
</dt>
<dd>
@Model.Rarity.ToName()
</dd>
Which works great!
So what I was hoping, was to use this description in the select drop down.
But can't seem to figure out a way to do it in the Razor view, using the HTML.Helpers. Where would I put the logic for calling the ToName() extension method?:
<div class="form-group">
<label asp-for="Rarity" class="control-label"></label>
<select asp-for="Rarity"
asp-items="Html.GetEnumSelectList<Rarity>()" class="form-control"></select>
</div>
