| GrapeCity.CalcEngine Namespace > CalcCalculationManager Class > Invalidate Method : Invalidate(CalcLocalIdentity,Boolean) Method | 
'Declaration Public Overloads Sub Invalidate( _ ByVal id As CalcLocalIdentity, _ Optional ByVal autoCalculate As Boolean _ )
'Usage Dim instance As CalcCalculationManager Dim id As CalcLocalIdentity Dim autoCalculate As Boolean instance.Invalidate(id, autoCalculate)
public void Invalidate( CalcLocalIdentity id, bool autoCalculate )
| Exception | Description | 
|---|---|
| System.ArgumentNullException | id is a null reference (Nothing in Visual Basic). | 
Target Platforms: Windows Server 2012, Windows RT