Am I missing a using to use [Display(Name = "string")] on an enum?

Question

"The type or namespace name Display cannot be found ... " "The type or namespace name Name cannot be found ... "

public enum MyEnum
{
  [Display(Name = "The First")]
  first = 1,
  [Display(Name = "The Second")]
  second,
  [Display(Name = "The Third")]
  third= 1
}

I tried [DisplayName("The First")] and that is only valid for a Class, Method Property, or Event...

What am I missing here?

UDPATE: Needed [Description()] so...

public enum MyEnum
{
  [Description("The First")]
  first = 1,
  [Description("The Second")]
  second,
  [Description("The Third")]
  third= 1
}

Check my answer here: https://stackoverflow.com/questions/3289198/custom-attribute-on-property-getting-type-and-value-of-attributed-property/49560324#49560324 — PmanAce, Jan 25 '19 at 14:41
Sounds like you're missing a `using`... Or you may want to use [`Description`](https://stackoverflow.com/q/1799370/215552)... — Heretic Monkey, Jan 25 '19 at 14:45
Yes. You are looking for the DisplayAttribute class. Using "Attribute" is optional in C#. — Hans Passant, Jan 25 '19 at 15:04

score 0 · Accepted Answer · answered Jan 25 '19 at 17:12

If someone ends up here because they are looking for the DisplayAttribute, it lives in the System.ComponentModel.DataAnnotations namespace. What makes things confusing is that you can add a using directive for this particular namespace, and it won't complain... but it won't find DisplayAttribute either. It stays greyed out as if the directive is unnecessary.

Right-click on "References" in your project and select "System.ComponentModel.DataAnnotations".

The using directive will turn black, and the Display attribute will be recognized.

Good point here. This was not my particular need. However, I'm going to accept this answer as I do believe others who come here will likely need this info. — jeffcodes, Jan 25 '19 at 19:23

score -1 · Answer 2 · answered Jan 25 '19 at 14:54

-1

You might wanna use Description.

public enum MyEnum
{
  [Description(Name = "The First")]
  first = 1,
  [Description(Name = "The Second")]
  second =2,
  [DisDescriptionplay(Name = "The Third")]
  third= 1
}

answered Jan 25 '19 at 14:54

Bruno Caceiro

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Am I missing a using to use [Display(Name = "string")] on an enum?

2 Answers2