![](dotnetdiagramimages/GrapeCity_WPF_CalcEngine_GrapeCity_CalcEngine_Functions_CalcIsErrorFunction.png)
'Declaration Public Class CalcIsErrorFunction Inherits CalcBuiltinFunction
'Usage Dim instance As CalcIsErrorFunction
public class CalcIsErrorFunction : CalcBuiltinFunction
System.Object
GrapeCity.CalcEngine.Functions.CalcFunction
GrapeCity.CalcEngine.Functions.CalcBuiltinFunction
GrapeCity.CalcEngine.Functions.CalcIsErrorFunction