CODEWITHSUNDEEP
c#jsonasp.net-mvcenumsjson.net
kidax
kidax

Reputation: 63

How to get Enum value statically?

I want to get the EnumMember's Value statically. It works if I pass fill out my model, as shown below.

LibraryStatus Enum

public enum LibraryStatus
{
    Watching, 
    Completed,
    [EnumMember(Value = "On Hold")]
    OnHold,
    Dropped,
    [EnumMember(Value = "Plan To Watch")]
    PlanToWatch
}

Class

public class LibraryListing
{
    ...
    [JsonConverter(typeof(StringEnumConverter))]
    public LibraryStatus LibraryStatus { get; set; }
    ...
}

When I pass the Model to view:

var initialData = @Html.Raw(JsonConvert.SerializeObject(Model, new JsonSerializerSettings {ReferenceLoopHandling = ReferenceLoopHandling.Ignore }));

JSON Output

[{"AnimeListId":2146,"LibraryStatus":"On Hold","AnimeAccountId":3},{"AnimeListId":2165,"LibraryStatus":"Plan To Watch","AnimeAccountId":3},{"AnimeListId":2145,"LibraryStatus":"Watching","AnimeAccountId":3},{"AnimeListId":2174,"LibraryStatus":"On Hold","AnimeAccountId":3},{"AnimeListId":2143,"LibraryStatus":"Watching","AnimeAccountId":3},{"AnimeListId":2171,"LibraryStatus":"Dropped","AnimeAccountId":3}]

Look at the "LibraryStatus" key, it has a value of "On Hold"

However, when I do a call like this:

var output = Enum.GetValues(typeof(LibraryStatus));

the output is:

[0] => "Watching",
[1] => "Completed",
[2] => "OnHold", *****
[3] => "Dropped",
[4] => "PlanToWatch" *****

I basically need the enum names statically. How can I get the output to match? Or better yet, anyone have a better method/suggestions? I basically need the output so I can filter the data on the view.

Upvotes: 2

Views: 115

Answers (1)

Rob
Rob

Reputation: 27367

Try this:

private List<String> GetEnumNames(Type enumType)
{
    return enumType.GetMembers(BindingFlags.Public | BindingFlags.Static).Select(m => { 
        var attr = m.GetCustomAttribute<EnumMemberAttribute>();
        if (attr != null)
            return attr.Value;
        return m.Name;
    }).ToList();
}

Running:

var output = GetEnumNames(typeof(LibraryStatus));
output.Dump();

Gives me the output:

Watching 
Completed 
On Hold 
Dropped 
Plan To Watch

Upvotes: 3

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