> For the complete documentation index, see [llms.txt](https://csharp.progdocs.se/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://csharp.progdocs.se/grundlaggande/datatyper/enum.md).

# Enum

Enums är ett snabbt, enkelt sätt att skapa egna "datatyper".

Man skriver dem **utanför de vanliga metoderna**.

När man skapar en enum, så bestämmer man vilka värden som ska vara giltiga – ungefär som att de enda giltiga värdena för en boolean är true och false.

```csharp
Enum Room {
  entrance,
  corridor,
  dungeon
}
```

I exemplet är de enda giltiga värdena för en variabel med Rooms-datatypen entrance, corridor och dungeon.

Senare, i metoderna, kan de användas som datatyper.

Man skapar alltså variabler där man anger datatypen som enum-namnet:

```
Room currentRoom = Room.entrance;
```

Man kan också använda dem i till exempel if-satser:

```csharp
if (currentRoom == Room.corridor)
{
  // kod
}
```

Vill man skapa mer komplexa egna datatyper så är det [klasser](https://sites.google.com/view/csharp-referens/klasser-och-objektorientering?authuser=0) som gäller.


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