# CalculationDiagnostic ```csharp public sealed class CalculationDiagnostic ``` Namespace `SharpCell` · package `SharpCell` Something calculation noticed that is not visible in cell values alone. ## Constructors ### CalculationDiagnostic(DiagnosticKind, Worksheet, string, string) ```csharp public CalculationDiagnostic(DiagnosticKind kind, Worksheet? sheet, string? address, string message) ``` Something calculation noticed that is not visible in cell values alone. ## Properties ### Address ```csharp public string? Address { get; } ``` A1 address of the affected cell; null for [Workbook.Evaluate](SharpCell.Workbook.md#evaluate-string). ### Kind ```csharp public DiagnosticKind Kind { get; } ``` What happened. ### Message ```csharp public string Message { get; } ``` A description for people, such as the cells that form a circular reference. ### Sheet ```csharp public Worksheet? Sheet { get; } ``` Sheet of the affected cell; null for [Workbook.Evaluate](SharpCell.Workbook.md#evaluate-string). ## Methods ### ToString() ```csharp public override string ToString() ``` The kind, the cell if there is one, and the message on one line.