public string ValidateIfNullOrEmpty(string field) { return((string.IsNullOrWhiteSpace(field) || string.IsNullOrEmpty(field)) ? ValidationErrorMessages.FieldRequired(field) : string.Empty); }
/// <summary> /// returns error message if id is default. Otherwise, returns empty string /// </summary> /// <param name="id">Guid to be checked</param> /// <returns></returns> public string ValidateGuidIfDefault(Guid id) { return((id == Guid.Empty) ? ValidationErrorMessages.FieldRequired(id) : string.Empty); }