I have the below piece of coding :-
=IIf(IsNothing(((Sum(Fields!TotalCost.Value, "Accrued") + Sum(Fields!TotalCost.Value, "serv1")) / (Sum(Fields!Quantity.Value, "serv1") + Sum(Fields!Quantity.Value, "Accrued"))), (45),
((Sum(Fields!TotalCost.Value, "Accrued") + Sum(Fields!TotalCost.Value, "serv1")) / (Sum(Fields!Quantity.Value, "serv1") + Sum(Fields!Quantity.Value, "Accrued")))
which when run in Visual Studio 2008 returns the below error:-
BC30057] Too many arguments to 'Public Function IsNothing(Expression As Object) As Boolean'.
Can anyone advise on what the error may be?