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