How to Get all Enum Values assign to my model return as List in c#?

Question

I was planned to fill my country List drop down using Enum. So i need Enum value description and that index value. My Conditions:

1. I want all Enum Value description with index number value.
2. I don't want value of Enum only i need description and index.

My Enum :

public enum CountryListEnum
    {
        [Description("United Kingdom")]
        UnitedKingdom = 0,
        [Description("United States")]
        UnitedStates = 1,
        [Description("Afghanistan")]
        Afghanistan = 2,
        [Description("Albania")]
        Albania = 3,
    }

My Model :

public class CountryModel
    {
        public int CountryId { get; set; }
        public string CountryName { get; set; }
    }

Answer 1

To get the index value, you can just cast the enum to an int. Getting the description attribute is a little more involved. Maybe something like this

public enum CountryListEnum
{
    [Description("United Kingdom")]
    UnitedKingdom = 0,
    [Description("United States")]
    UnitedStates = 1,
    [Description("Afghanistan")]
    Afghanistan = 2,
    [Description("Albania")]
    Albania = 3,
}

static void Main(string[] args)
{
    foreach (var country in Enum.GetValues(typeof(CountryListEnum)).Cast<CountryListEnum>())
    {
        Console.WriteLine($"Index: {(int)country}");
        Console.WriteLine($"Description: {GetDescription(country)}");
    }
}

public static string GetDescription(Enum value)
{
    Type type = value.GetType();
    string name = Enum.GetName(type, value);
    if (name != null)
    {
        System.Reflection.FieldInfo field = type.GetField(name);
        if (field != null)
        {
            if (Attribute.GetCustomAttribute(field,
                typeof(DescriptionAttribute)) is DescriptionAttribute attr)
            {
                return attr.Description;
            }
        }
    }
    return null;
}

Answer 2

I think this should help you with an implementation.

        foreach (var item in Enum.GetValues(typeof(CountryListEnum)))
        {
            CountryModel myModel = new CountryModel();

            myModel.CountryId = item.GetHashCode();
            myModel.CountryName = item.ToString();
        }

Edit

As others have pointed the above will not retrieve the description. Here is an update in how to implement the retrial of description attribute.

        foreach (var item in Enum.GetValues(typeof(CountryListEnum)))
        {
            CountryModel myModel = new CountryModel();

            myModel.CountryId = item.GetHashCode();

            var type = typeof(CountryListEnum);
            var memInfo = type.GetMember(item.ToString());
            var attributes = memInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
            var description = ((DescriptionAttribute)attributes[0]).Description;

            myModel.CountryName = description;
        }

Answer 3

I think, this is what you looking for.

var model = new List<CountryModel>();
foreach (var item in Enum.GetValues(typeof(CountryListEnum)))
{
    model.Add(new CountryModel
    {
        CountryId = (int)item,
        CountryName = ((DescriptionAttribute)item.GetType().GetField(item.ToString()).GetCustomAttribute(typeof(DescriptionAttribute), false)).Description
    });
}