public Channel(string id, List <User> members, KeyMetadata keyMetadata, string name = null) { Id = id; Members = members; KeyInformation = keyMetadata; if (keyMetadata == KeyMetadata.InitiatorKeyNotDisplayed) { var key = _keyHandler.ProduceKeys(8100); var _key = ""; foreach (var number in key) { var keyA = number / 90 + 1; var keyB = number % 90 + 1; _key = _key + MathematicalMappingLogic.TransformationTable[keyA] + MathematicalMappingLogic.TransformationTable[keyB]; } DependencyService.Get <IStorage>().SetValueWithKey(Id, _key); } if (name == null) { if (members.Count > 1) { Name = members[0].Username + " " + AppResources.And + " " + (members.Count - 1) + " " + AppResources.MoreMembers; } else { Name = members[0].Username; } } else { Name = name; } }