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Sunil Bamal
Sunil Bamal

Reputation: 117

How to fetch an element's Display attribute in c# enums

I have below enum and I want to fetch its element's Display attribute based on values assigned to it.

I need to create a function where I need to pass a value(1 for Economic) and it will return me related element's Display attribute.

public enum ProbabilityNames
{
    [Display(Name = "Economic Probability")]
    Economic = 1,
    [Display(Name = "Reliability Probability")]
    Reliability = 2     
}

Upvotes: 0

Views: 171

Answers (1)

rytisk
rytisk

Reputation: 1539

You can use reflection for that:

public static class ProbabilityNamesExtensions
{
    public static DisplayAttribute GetDisplay(this ProbabilityNames value) =>
        typeof(ProbabilityNames)
            .GetField(Enum.GetName(typeof(ProbabilityNames), value))
            .GetCustomAttributes(false)
            .SingleOrDefault(attr => attr is DisplayAttribute) as DisplayAttribute;

    public static string GetDisplayName(this ProbabilityNames value) =>
        value.GetDisplay()?.Name;
}

You can use it like this:

ProbabilityNames.Economic.GetDisplay();

Or if you need to get the display based on an int value, you can just cast it:

((ProbabilityNames)1).GetDisplay();

Upvotes: 1

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