C# 如何通过MVC代码获取枚举成员的Display Name属性?

C# 如何通过MVC代码获取枚举成员的Display Name属性?,c#,asp.net-mvc,razor,displayattribute,C#,Asp.net Mvc,Razor,Displayattribute,我的模型中有一个名为Promotion的属性,它的类型是一个名为UserPromotion的标志枚举。“我的枚举”成员的显示属性设置如下: [Flags] public enum UserPromotion { None = 0x0, [Display(Name = "Send Job Offers By Mail")] SendJobOffersByMail = 0x1, [Display(Name = "Send Job Of

我的模型中有一个名为
Promotion
的属性,它的类型是一个名为
UserPromotion
的标志枚举。“我的枚举”成员的显示属性设置如下:

[Flags]
public enum UserPromotion
{
    None = 0x0,

    [Display(Name = "Send Job Offers By Mail")]
    SendJobOffersByMail = 0x1,

    [Display(Name = "Send Job Offers By Sms")]
    SendJobOffersBySms = 0x2,

    [Display(Name = "Send Other Stuff By Sms")]
    SendPromotionalBySms = 0x4,

    [Display(Name = "Send Other Stuff By Mail")]
    SendPromotionalByMail = 0x8
}
现在,我希望能够在我的视图中创建一个
ul
,以显示我的
Promotion
属性的选定值。这就是我到目前为止所做的,但问题是如何在这里获得显示名称

<ul>
    @foreach (int aPromotion in @Enum.GetValues(typeof(UserPromotion)))
    {
        var currentPromotion = (int)Model.JobSeeker.Promotion;
        if ((currentPromotion & aPromotion) == aPromotion)
        {
        <li>Here I don't know how to get the display attribute of "currentPromotion".</li>
        }
    }
</ul>
    @foreach(int-aPromotion在@Enum.GetValues中(typeof(UserPromotion))) { var currentPromotion=(int)Model.jobsequeer.Promotion; if((当前升级和升级)=A升级) {
  • 这里我不知道如何获得“currentPromotion”的display属性
  • } }

您需要使用一点反射来访问该属性:

var type = typeof(UserPromotion);
var member = type.GetMember(Model.JobSeeker.Promotion.ToString());
var attributes = member[0].GetCustomAttributes(typeof(DisplayAttribute), false);
var name = ((DisplayAttribute)attributes[0]).Name;
我建议将此方法包装到扩展方法中,或在视图模型中执行此操作。

    <ul>
        @foreach (int aPromotion in @Enum.GetValues(typeof(UserPromotion)))
        {
            var currentPromotion = (int)Model.JobSeeker.Promotion;
            if ((currentPromotion & aPromotion) == aPromotion)
            {
            <li>@Html.DisplayFor(e => currentPromotion)</li>
            }
        }
    </ul>
    
    @foreach(int-aPromotion在@Enum.GetValues中(typeof(UserPromotion))) { var currentPromotion=(int)Model.jobsequeer.Promotion; if((当前升级和升级)=A升级) {
  • @DisplayFor(e=>currentPromotion)
  • } }
您可以使用,然后使用反射:

// display attribute of "currentPromotion"

var type = typeof(UserPromotion);
var memberInfo = type.GetMember(currentPromotion.ToString());
var attributes = memberInfo[0].GetCustomAttributes(typeof(DisplayAttribute), false);
var description = ((DisplayAttribute)attributes[0]).Name;
这里有一些类似的帖子:


更新

第一个解决方案的重点是从enum获取显示名称。下面的代码应该是您的问题的精确解决方案

可以将此帮助器类用于枚举:

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();
    }
}
使用系统;
使用System.Collections.Generic;
使用System.ComponentModel.DataAnnotations;
使用System.Linq;
运用系统反思;
公共静态类枚举帮助器
其中T:struct,Enum//此约束要求C#7.3或更高版本。
{
公共静态IList GetValues(枚举值)
{
var enumValues=新列表();
foreach(value.GetType().GetFields中的FieldInfo fi(BindingFlags.Static | BindingFlags.Public))
{
Add((T)Enum.Parse(value.GetType(),fi.Name,false));
}
返回枚举值;
}
公共静态T解析(字符串值)
{
返回(T)Enum.Parse(typeof(T),value,true);
}
公共静态IList GetNames(枚举值)
{
返回值.GetType().GetFields(BindingFlags.Static | BindingFlags.Public);
}
公共静态IList GetDisplayValue(枚举值)
{
返回GetNames(value).Select(obj=>GetDisplayValue(Parse(obj)).ToList();
}
私有静态字符串查找资源(类型resourceManagerProvider,字符串resourceKey)
{
var resourceKeyProperty=resourceManagerProvider.GetProperty(resourceKey,
BindingFlags.Static | BindingFlags.Public,null,typeof(string),
新类型[0],空);
if(resourceKeyProperty!=null)
{
返回(字符串)resourceKeyProperty.GetMethod.Invoke(null,null);
}
return resourceKey;//使用密钥名进行回退
}
公共静态字符串GetDisplayValue(T值)
{
var fieldInfo=value.GetType().GetField(value.ToString());
变量descriptionAttributes=fieldInfo.GetCustomAttributes(
typeof(DisplayAttribute),false)作为DisplayAttribute[];
if(descriptionAttribute[0].ResourceType!=null)
返回lookupResource(DescriptionAttribute[0]。资源类型,DescriptionAttribute[0]。名称);
if(descriptionAttributes==null)返回string.Empty;
return(descriptionAttributes.Length>0)?descriptionAttributes[0]。名称:value.ToString();
}
}
然后您可以在视图中使用它,如下所示:

<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>
    @foreach(@EnumHelper.GetValues(UserPromotion.None)中的var值) { if(值==Model.jobsequeer.Promotion) { var description=EnumHelper.GetDisplayValue(值);
  • @DisplayFor(e=>description)
  • } }

希望有帮助!:)

一行-流畅的语法

public static class Extensions
{
    /// <summary>
    ///     A generic extension method that aids in reflecting 
    ///     and retrieving any attribute that is applied to an `Enum`.
    /// </summary>
    public static TAttribute GetAttribute<TAttribute>(this Enum enumValue) 
            where TAttribute : Attribute
    {
        return enumValue.GetType()
                        .GetMember(enumValue.ToString())
                        .First()
                        .GetCustomAttribute<TAttribute>();
    }
}
公共静态类扩展
{
/// 
///有助于反射的通用扩展方法
///以及检索应用于“Enum”的任何属性。
/// 
公共静态TatAttribute GetAttribute(此枚举枚举值)
其中:属性
{
返回enumValue.GetType()
.GetMember(enumValue.ToString())
.First()
.GetCustomAttribute();
}
}

示例

public enum Season 
{
   [Display(Name = "It's autumn")]
   Autumn,

   [Display(Name = "It's winter")]
   Winter,

   [Display(Name = "It's spring")]
   Spring,

   [Display(Name = "It's summer")]
   Summer
}

public class Foo 
{
    public Season Season = Season.Summer;

    public void DisplayName()
    {
        var seasonDisplayName = Season.GetAttribute<DisplayAttribute>();
        Console.WriteLine("Which season is it?");
        Console.WriteLine (seasonDisplayName.Name);
    } 
}
公共枚举季节
{
[显示(Name=“现在是秋天”)]
秋天,
[显示(Name=“现在是冬天”)]
冬天
[显示(Name=“这是春天”)]
春天
[显示(Name=“现在是夏天”)]
夏天
}
公开课Foo
{
公共季节=季节。夏季;
public void DisplayName()
{
var seasuredisplayname=seasure.GetAttribute();
Console.WriteLine(“现在是哪个季节?”);
Console.WriteLine(seasuredisplayname.Name);
} 
}

输出 现在是哪个季节?
现在是夏天

在此基础上,这里有一个不需要任何类型参数的扩展方法

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

public static class EnumExtensions
{
    public static string GetDisplayName(this Enum enumValue)
    {
        return enumValue.GetType()
                        .GetMember(enumValue.ToString())
                        .First()
                        .GetCustomAttribute<DisplayAttribute>()
                        .GetName();
    }
}
/// <summary>
/// Gets human-readable version of enum.
/// </summary>
/// <returns>effective DisplayAttribute.Name of given enum.</returns>
public static string GetDisplayName<T>(this T enumValue) where T : IComparable, IFormattable, IConvertible
{
    if (!typeof(T).IsEnum)
        throw new ArgumentException("Argument must be of type Enum");

    DisplayAttribute displayAttribute = enumValue.GetType()
                                                 .GetMember(enumValue.ToString())
                                                 .First()
                                                 .GetCustomAttribute<DisplayAttribute>();

    string displayName = displayAttribute?.GetName();

    return displayName ?? enumValue.ToString();
}
输出


晋升:通过邮件发送工作邀请

基于我建议少一些“重复”的实施(因为我们可以很容易地从
Enum
值本身获取
类型
,而不是在Aydin和Todd的答案的基础上进一步提供它作为参数,这里有一个扩展方法,它还允许您从资源文件获取名称

using AppResources;
using System;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Reflection;
using System.Resources;

public static class EnumExtensions
{
    public static string GetDisplayName(this Enum enumValue)
    {
        var enumMember= enumValue.GetType()
                        .GetMember(enumValue.ToString());

        DisplayAttribute displayAttrib = null;
        if (enumMember.Any()) {
            displayAttrib = enumMember 
                        .First()
                        .GetCustomAttribute<DisplayAttribute>();
        }

        string name = null;
        Type resource = null;

        if (displayAttrib != null)
        {
            name = displayAttrib.Name;
            resource = displayAttrib.ResourceType;
        }

        return String.IsNullOrEmpty(name) ? enumValue.ToString()
            : resource == null ?  name
            : new ResourceManager(resource).GetString(name);
    }
}

如果您使用的是MVC 5.1或更高版本,有一种更简单、更清晰的方法:只需使用数据注释(来自
System.ComponentModel.DataAnnotations
namespace),如下所示:

public enum Color
{
    [Display(Name = "Dark red")]
    DarkRed,
    [Display(Name = "Very dark red")]
    VeryDarkRed,
    [Display(Name = "Red or just black?")]
    ReallyDarkRed
}
在视图中,只需将其放入适当的html帮助程序:

@Html.EnumDropDownListFor(model => model.Color)

基于我之前的答案
@Html.EnumDropDownListFor(model => model.Color)
public static class EnumExtensions
    {
        public static DisplayAttributeValues GetDisplayAttributeValues(this Enum enumValue)
        {
            var displayAttribute = enumValue.GetType().GetMember(enumValue.ToString()).First().GetCustomAttribute<DisplayAttribute>();

            return new DisplayAttributeValues(enumValue, displayAttribute);
        }

        public sealed class DisplayAttributeValues
        {
            private readonly Enum enumValue;
            private readonly DisplayAttribute displayAttribute;

            public DisplayAttributeValues(Enum enumValue, DisplayAttribute displayAttribute)
            {
                this.enumValue = enumValue;
                this.displayAttribute = displayAttribute;
            }

            public bool? AutoGenerateField => this.displayAttribute?.GetAutoGenerateField();
            public bool? AutoGenerateFilter => this.displayAttribute?.GetAutoGenerateFilter();
            public int? Order => this.displayAttribute?.GetOrder();
            public string Description => this.displayAttribute != null ? this.displayAttribute.GetDescription() : string.Empty;
            public string GroupName => this.displayAttribute != null ? this.displayAttribute.GetGroupName() : string.Empty;
            public string Name => this.displayAttribute != null ? this.displayAttribute.GetName() : this.enumValue.ToString();
            public string Prompt => this.displayAttribute != null ? this.displayAttribute.GetPrompt() : string.Empty;
            public string ShortName => this.displayAttribute != null ? this.displayAttribute.GetShortName() : this.enumValue.ToString();
        }
    }
static class EnumExtensions
{
    /// returns the localized Name, if a [Display(Name="Localised Name")] attribute is applied to the enum member
    /// returns null if there isnt an attribute
    public static string DisplayNameOrEnumName(this Enum value)
    // => value.DisplayNameOrDefault() ?? value.ToString()
    {
        // More efficient form of ^ based on http://stackoverflow.com/a/17034624/11635
        var enumType = value.GetType();
        var enumMemberName = Enum.GetName(enumType, value);
        return enumType
            .GetEnumMemberAttribute<DisplayAttribute>(enumMemberName)
            ?.GetName() // Potentially localized
            ?? enumMemberName; // Or fall back to the enum name
    }

    /// returns the localized Name, if a [Display] attribute is applied to the enum member
    /// returns null if there is no attribute
    public static string DisplayNameOrDefault(this Enum value) =>
        value.GetEnumMemberAttribute<DisplayAttribute>()?.GetName();

    static TAttribute GetEnumMemberAttribute<TAttribute>(this Enum value) where TAttribute : Attribute =>
        value.GetType().GetEnumMemberAttribute<TAttribute>(value.ToString());

    static TAttribute GetEnumMemberAttribute<TAttribute>(this Type enumType, string enumMemberName) where TAttribute : Attribute =>
        enumType.GetMember(enumMemberName).Single().GetCustomAttribute<TAttribute>();
}
/// <summary>
/// Gets human-readable version of enum.
/// </summary>
/// <returns>effective DisplayAttribute.Name of given enum.</returns>
public static string GetDisplayName<T>(this T enumValue) where T : IComparable, IFormattable, IConvertible
{
    if (!typeof(T).IsEnum)
        throw new ArgumentException("Argument must be of type Enum");

    DisplayAttribute displayAttribute = enumValue.GetType()
                                                 .GetMember(enumValue.ToString())
                                                 .First()
                                                 .GetCustomAttribute<DisplayAttribute>();

    string displayName = displayAttribute?.GetName();

    return displayName ?? enumValue.ToString();
}
public class MyClass
{
    public enum MyEnum 
    {
        [Display(Name="ONE")]
        One,
        // No DisplayAttribute
        Two
    }
    public void UseMyEnum()
    {
        MyEnum foo = MyEnum.One;
        MyEnum bar = MyEnum.Two;
        Console.WriteLine(foo.GetDisplayName());
        Console.WriteLine(bar.GetDisplayName());
    }
}
// Output:
//
// ONE
// Two
public enum CommentType
{
    All = 1,
    Rent = 2,
    Insurance = 3,
    [Display(Name="Service Charge")]
    ServiceCharge = 4
}
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Reflection;

public static class EnumHelper<T>
{
    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)
    {
        foreach (PropertyInfo staticProperty in resourceManagerProvider.GetProperties(BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Public))
        {
            if (staticProperty.PropertyType == typeof(System.Resources.ResourceManager))
            {
                System.Resources.ResourceManager resourceManager = (System.Resources.ResourceManager)staticProperty.GetValue(null, null);
                return resourceManager.GetString(resourceKey);
            }
        }

        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.Any() && 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();
    }
}
public static string GetDisplayName(Enum enumValue)
{
  return enumValue.GetType()?
 .GetMember(enumValue.ToString())?[0]?
 .GetCustomAttribute<DisplayAttribute>()?
 .Name;
}
    public static string GetDisplayName(this Enum enumValue)
    {
        return enumValue
            .GetType()
            .GetMember(enumValue.ToString())
            .First()
            .GetCustomAttribute<DisplayAttribute>()
            .GetName();
    }
    public static string GetDisplayName(this Enum enumValue, CultureInfo ci)
    {
        var displayAttr = enumValue
            .GetType()
            .GetMember(enumValue.ToString())
            .First()
            .GetCustomAttribute<DisplayAttribute>();

        var resMan = displayAttr.ResourceType?.GetProperty(@"ResourceManager", BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic).GetValue(null, null) as ResourceManager;

        return resMan?.GetString(displayAttr.Name, ci) ?? displayAttr.GetName();
    }
public enum UserPromotion
{
   None = 0x0,

   [Display(Name = "Send Job Offers By Mail")]
   SendJobOffersByMail = 0x1,

   [Display(Name = "Send Job Offers By Sms")]
   SendJobOffersBySms = 0x2,

   [Display(Name = "Send Other Stuff By Sms")]
   SendPromotionalBySms = 0x4,

   [Display(Name = "Send Other Stuff By Mail")]
   SendPromotionalByMail = 0x8
}
@Html.EnumDropdownListFor(expression: model => model.PromotionSelector, optionLabel: "Select") 
public enum Enum
{
    [Display(Name = "What a weird name!")]
    ToString,

    Equals
}

public static class EnumHelpers
{
    public static string GetDisplayName(this Enum enumValue)
    {
        var enumType = enumValue.GetType();

        return enumType
                .GetMember(enumValue.ToString())
                .Where(x => x.MemberType == MemberTypes.Field && ((FieldInfo)x).FieldType == enumType)
                .First()
                .GetCustomAttribute<DisplayAttribute>()?.Name ?? enumValue.ToString();
    }
}

void Main()
{
    Assert.Equals("What a weird name!", Enum.ToString.GetDisplayName());
    Assert.Equals("Equals", Enum.Equals.GetDisplayName());
}
using System;
using System.Linq;
using System.ComponentModel.DataAnnotations;
using System.Reflection;

public class Enums
{
    public enum Duration
    { 
        [Display(Name = "1 Hour")]
        OneHour,
        [Display(Name = "1 Day")]
        OneDay
    }

    // Helper method to display the name of the enum values.
    public static string GetDisplayName(Enum value)
    {
        return value.GetType()?
       .GetMember(value.ToString())?.First()?
       .GetCustomAttribute<DisplayAttribute>()?
       .Name;
    }
}
public class MyViewModel
{
    public Duration Duration { get; set; }
}
@model IEnumerable<MyViewModel> 

@foreach (var item in Model)
{
    <label asp-for="@item.Duration">@Enums.GetDisplayName(item.Duration)</label>
    <div class="form-group">
        <label asp-for="@item.Duration" class="control-label">Select Duration</label>
        <select asp-for="@item.Duration" class="form-control"
            asp-items="Html.GetEnumSelectList<Enums.Duration>()">
        </select>
    </div>
}
public enum CourseLocationTypes
{
    [Display(Name = "On Campus")]
    OnCampus,
    [Display(Name = "Online")]
    Online,
    [Display(Name = "Both")]
    Both
}

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

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

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

    return outString;
}
public static string SplitOnCapitals(this string text)
{
        var r = new Regex(@"
            (?<=[A-Z])(?=[A-Z][a-z]) |
             (?<=[^A-Z])(?=[A-Z]) |
             (?<=[A-Za-z])(?=[^A-Za-z])", RegexOptions.IgnorePatternWhitespace);

        return r.Replace(text, " ");
}
public static string ATexto<T>(this T enumeración) where T : struct, Enum {
    var tipo = enumeración.GetType();
    return tipo.GetMember(enumeración.ToString())
    .Where(x => x.MemberType == MemberTypes.Field && ((FieldInfo)x).FieldType == tipo).First()
    .GetCustomAttribute<DisplayAttribute>()?.Name ?? enumeración.ToString();
} 
public enum TipoImpuesto { 
IVA, INC, [Display(Name = "IVA e INC")]IVAeINC, [Display(Name = "No aplica")]NoAplica };
var tipoImpuesto = TipoImpuesto.IVAeINC;
var textoTipoImpuesto = tipoImpuesto.ATexto(); // Prints "IVA e INC".
    public static string ATexto<T>(this T enumeración) where T : struct, Enum {

        var tipo = enumeración.GetType();
        var textoDirecto = enumeración.ToString();

        string obtenerTexto(string textoDirecto) => tipo.GetMember(textoDirecto)
            .Where(x => x.MemberType == MemberTypes.Field && ((FieldInfo)x).FieldType == tipo)
            .First().GetCustomAttribute<DisplayAttribute>()?.Name ?? textoDirecto;

        if (textoDirecto.Contains(", ")) {

            var texto = new StringBuilder();
            foreach (var textoDirectoAux in textoDirecto.Split(", ")) {
                texto.Append($"{obtenerTexto(textoDirectoAux)}, ");
            }
            return texto.ToString()[0..^2];

        } else {
            return obtenerTexto(textoDirecto);
        }

    } 
[Flags] public enum TipoContribuyente {
    [Display(Name = "Común")] Común = 1, 
    [Display(Name = "Gran Contribuyente")] GranContribuyente = 2, 
    Autorretenedor = 4, 
    [Display(Name = "Retenedor de IVA")] RetenedorIVA = 8, 
    [Display(Name = "Régimen Simple")] RégimenSimple = 16 } 
var tipoContribuyente = TipoContribuyente.RetenedorIVA | TipoContribuyente.GranContribuyente;
var textoAux = tipoContribuyente.ATexto(); // Prints "Gran Contribuyente, Retenedor de IVA".
@Html.DisplayTextFor(m => m.SomeEnumProperty)
public enum MyEnum
{
    [Display(Name = "Not started")]
    NotStarted = 0,
    [Display(Name = "Weird display name instead of just 'Started'")]
    Started = 1,
}
 @foreach (var yourEnum in Html.GetEnumSelectList<YourEnum>())
 {
     @yourEnum.Text
 }