Serializable custom exceptions #csharp

CustomException.cs

[Serializable]
public class CustomException : Exception
{
    public CustomException()
    {
    }
    public CustomException(string message) : base(message)
    {
    }
    public CustomException(string message, Exception innerException) : base(message, innerException)
    {
    }
    public CustomException(SerializationInfo info, StreamingContext context) : base(info, context)
    {
    }
}

CustomException2.cs

[Serializable]
public class CustomException : Exception
{
    public ErrorCodes ErrorCode { get; }
    public CustomException(ErrorCodes errorCode, string message, Exception innerException = null) : base(message, innerException)
    {
        this.ErrorCode = errorCode;
    }

    [SecurityPermission(SecurityAction.Demand, SerializationFormatter = true)]
    internal CustomException(SerializationInfo info, StreamingContext context) : base(info, context)
    {
        if (info == null)
        {
            throw new ArgumentNullException(nameof(info));
        }
        this.ErrorCode = (ErrorCodes)info.GetInt32(nameof(ErrorCode));
    }
    
    [SecurityPermission(SecurityAction.Demand, SerializationFormatter = true)]
    public override void GetObjectData(SerializationInfo info, StreamingContext context)
    {
        if (info == null)
        {
            throw new ArgumentNullException(nameof(info));
        }
        info.AddValue(nameof(ErrorCode), (int)this.ErrorCode);
        base.GetObjectData(info, context);
    }
}