What is the best way to implement error code either by Enum or Constant

Question

I need to handle error codes for the project. Previously, the enums were implemented like the following

enum ErrorCode{
    None=0,
    InvalidUserName = 1,
    InvalidEmail
}

Later, we thought to move to some user defined error code like the following.

"ERR001", "ERR001" .. etc.

For that, I have two options,

Using string annotation for the enum
Using constants or readonly static.

What is the best way to do either by enum (which does not support string) or constant?

score 2 · Accepted Answer · answered Apr 23 '22 at 10:57

Assign a numerical value to your error reason enum and prefix it with ERR.

public enum Error
{
    None = 0,
    Duplicate = 1,
    MissingDetails = 2,
    MissingFocus = 3,
    NoSampleCode = 4
}

public static string GetErrorCode(Error error)
{
    return $"ERR{(int)error:D3}";
}

Console.WriteLine(GetErrorCode(Error.NoSampleCode)); // prints "ERR004"

If this isn't what you require, you need to provide more information / sample code in your question so we can understand what is needed.

What is the best way to implement error code either by Enum or Constant

1 Answers1