title: Too many arguments
body: <p>I have the below piece of coding :-</p>
  
  <pre><code>=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")))
  </code></pre>
  
  <p>which when run in Visual Studio 2008 returns the below error:-</p>
  
  <blockquote>
    <p>BC30057] Too many arguments to 'Public Function IsNothing(Expression
    As Object) As Boolean'.</p>
  </blockquote>
  
  <p>Can anyone advise on what the error may be?</p>