How do I define a C# enum that includes integers as values?

Question

I'm designing an application that requires a "location" field. The values for the location are "3241", "4112", "ND" and "TRAVEL", and I am trying to set up an `enum` that includes those values. I started with ``` enum projectLocation {3241,4112,ND,TRAVEL}; ``` but the values 3241 and 4112 indicated a syntax error--`identifier expected`--for the first value in the `enum`. If I understand `enum` correctly, that's because the above statement is looking for the value for the `enum`'s integer indeces of `3241` and `4112`. Is this a correct assumption? I tried overriding that with the following ``` enum projectLocation {3241=0,4112,ND,TRAVEL}; ``` and ``` enum projectLocation {3241=0,4112=1,ND=2,TRAVEL=3}; ``` but I'm still getting the same syntax error on the `3241` value. Interestingly though, on both of these statements, there is NO syntax error on 4112, but I get `can't find the namespace or name ND` and `...TRAVEL` It makes sense that `enum` will not allow a mix of strings and integers…

Accepted Answer

Enums are called as named constants, so basically you give a name for some constant. Names are "identifiers" in c#, where identifier can contain numbers but first character cannot be a number.

You can add `_` before that to fix this error.

```
enum projectLocation 
{
    _3241=0,
    _4112=1,
    ND=2,
    TRAVEL=3
}
```

Also note the Fields, Properties Methods or whatever falls under this identifier rule mentioned above.

How do I define a C# enum that includes integers as values?

Solution

Problem