protected override void Validate()
{
base.Validate();
if (!Regex.IsMatch(this.Value, @"[\wäüöß-]+:[1-9]\d*\/\d+")) // e.g. "abcde:10/3
{
throw new ArgumentException($"The {nameof(AnswerId)} has an invalid format: \"{this.Value}\", Expected \"<configuration-name>:<questionLineNumber>/<answerLineNumber>\".");
}
var split = this.Value.Split('/');
this.QuestionId = QuestionId.From(split[0]);
this.LineNumber = int.Parse(split[1]);
}
public static AnswerId From(QuestionId questionId, int lineNumber)
{
return(AnswerId.From($"{questionId.Value}/{lineNumber}"));
}