public string getCardHeader() => (CardID > 0 ? $"Card #: {CardID:0000}" : "N/A") + $" - {CardTitle.Replace('\u3000',' ').Trim()}";
public string getCardHeader() => (CardID > 0 ? $"Card #: {CardID.ToString("0000")}" : "N/A") + $" - {CardTitle.Replace('\u3000',' ').Trim()}" + Environment.NewLine;