How to Get the Display Name Attribute of an Enum Member Via MVC Razor Code

How to get the Display Name Attribute of an Enum member via MVC Razor code?

UPDATE

First solution was focused on getting display names from enum. Code below should be exact solution for your problem.

You can use this helper class for enums:

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Reflection;

public static class EnumHelper<T>
    where T : struct, Enum // This constraint requires C# 7.3 or later.
{
    public static IList<T> GetValues(Enum value)
    {
        var enumValues = new List<T>();

        foreach (FieldInfo fi in value.GetType().GetFields(BindingFlags.Static | BindingFlags.Public))
        {
            enumValues.Add((T)Enum.Parse(value.GetType(), fi.Name, false));
        }
        return enumValues;
    }

    public static T Parse(string value)
    {
        return (T)Enum.Parse(typeof(T), value, true);
    }

    public static IList<string> GetNames(Enum value)
    {
        return value.GetType().GetFields(BindingFlags.Static | BindingFlags.Public).Select(fi => fi.Name).ToList();
    }

    public static IList<string> GetDisplayValues(Enum value)
    {
        return GetNames(value).Select(obj => GetDisplayValue(Parse(obj))).ToList();
    }

    private static string lookupResource(Type resourceManagerProvider, string resourceKey)
    {
        var resourceKeyProperty = resourceManagerProvider.GetProperty(resourceKey,
            BindingFlags.Static | BindingFlags.Public, null, typeof(string),
            new Type[0], null);
        if (resourceKeyProperty != null)
        {
            return (string)resourceKeyProperty.GetMethod.Invoke(null, null);
        }

        return resourceKey; // Fallback with the key name
    }

    public static string GetDisplayValue(T value)
    {
        var fieldInfo = value.GetType().GetField(value.ToString());

        var descriptionAttributes = fieldInfo.GetCustomAttributes(
            typeof(DisplayAttribute), false) as DisplayAttribute[];

        if (descriptionAttributes[0].ResourceType != null)
            return lookupResource(descriptionAttributes[0].ResourceType, descriptionAttributes[0].Name);

        if (descriptionAttributes == null) return string.Empty;
        return (descriptionAttributes.Length > 0) ? descriptionAttributes[0].Name : value.ToString();
    }
}

And then you can use it in your view as following:

<ul>
    @foreach (var value in @EnumHelper<UserPromotion>.GetValues(UserPromotion.None))
    {
         if (value == Model.JobSeeker.Promotion)
        {
            var description = EnumHelper<UserPromotion>.GetDisplayValue(value);
            <li>@Html.DisplayFor(e => description )</li>
        }
    }
</ul>

Hope it helps! :)

cant get Enum Display Name property in razor view

like this:

    public static class EnumExtensions
{
    public static string GetDisplayName(this Enum enumValue)
    {
        return enumValue.GetType()
                        .GetMember(enumValue.ToString())
                        .First()
                        .GetCustomAttribute<DisplayAttribute>()
                        .GetName();
    }
}

& the view :

@Model.LectureGig.Gender.GetDisplayName()

Get list of display names from enum c#

Wrote a method quickly, which you can expand from there.

To Use

SourceFromEnum test = new SourceFromEnum();
    
    var me =GetDisplayNames(test);

The Method

public  List<string> GetDisplayNames(Enum enm)
{
    var type=enm.GetType();
    var displaynames = new List<string>();
    var names = Enum.GetNames(type);
    foreach (var name in names)
    {
        var field = type.GetField(name);
        var fds = field.GetCustomAttributes(typeof(DisplayAttribute), true);
        
        if (fds.Length==0)
        {
            displaynames.Add(name);
        }
        
        foreach (DisplayAttribute fd in fds)
        {
            displaynames.Add(fd.Name);
        }
    }
    return displaynames;
}

can make it static,error checking, etc.

Displaying enum Display Name when iterating over enum values in Razor page (in ASP.NET Core)

So, I was able to utilize Description instead of Display Name and achieved the desired effect.

I had to create the following extension method:

public static class EnumHelper
{
    public static string GetDescription<T>(this T enumValue)
        where T : struct, IConvertible
    {
        if (!typeof(T).IsEnum)
            return null;

        var description = enumValue.ToString();
        var fieldInfo = enumValue.GetType().GetField(enumValue.ToString());

        if (fieldInfo != null)
        {
            var attrs = fieldInfo.GetCustomAttributes(typeof(DescriptionAttribute), true);
            if (attrs != null && attrs.Length > 0)
            {
                description = ((DescriptionAttribute)attrs[0]).Description;
            }
        }

        return description;
    }
}

And then I was able to access the extension method in the Razor page by casting the result of Enum.GetValues(typeof(AnswerYND)):

<label asp-for="Survey.CurrenltyUsingBirthControl"></label><br />
@foreach (var answer in Enum.GetValues(typeof(AnswerYND)).Cast<AnswerYND>())
{
    <div class="custom-control custom-radio custom-control-inline ">
    <label><input type="radio" asp-for="Survey.CurrenltyUsingBirthControl" value="@answer" />@answer.GetDescription()</label>
    </div>
 }

How do I get the display name attribute for an enumerable on an index page

Here is a demo to get display name with enum value:

EnumExtensions:

public static class EnumExtensions
    {
        public static string DisplayName(this Enum value)
        {
            Type enumType = value.GetType();
            var enumValue = Enum.GetName(enumType, value);
            MemberInfo member = enumType.GetMember(enumValue)[0];

            var attrs = member.GetCustomAttributes(typeof(DisplayAttribute), false);
            var outString = ((DisplayAttribute)attrs[0]).Name;

            if (((DisplayAttribute)attrs[0]).ResourceType != null)
            {
                outString = ((DisplayAttribute)attrs[0]).GetName();
            }

            return outString;
        }
       
    }

View:

@EnumExtensions.DisplayName(UserStatus._x)
@EnumExtensions.DisplayName(UserStatus._y)
@EnumExtensions.DisplayName(UserStatus._z)

result:

Sample Image

Update:

View:

@foreach (UserStatus userStatus in (UserStatus[])Enum.GetValues(typeof(UserStatus)))
{
    @EnumExtensions.DisplayName(userStatus)
}

result:

Sample Image

How to get enum's Display name from integer

string GetEnumDisplayName<T>(T value) where T : Enum
{
    var fieldName = Enum.GetName(typeof(T), value);
    var displayAttr = typeof(T)
        .GetField(fieldName)
        .GetCustomAttribute<DisplayAttribute>();
    return displayAttr?.Name ?? fieldName;
}

Then invoke it like:

var displayName = GetEnumDisplayName(StateEnum.AmericanSamoa);

EDIT If Timelineinfo.State is an integer, you can use invoke:

var displayName = GetEnumDisplayName((StateEnum)Timelineinfo.State);