Reporting Services Expression

Posted by Alex on Stack Overflow See other posts from Stack Overflow or by Alex
Published on 2010-12-21T09:40:05Z Indexed on 2010/12/21 10:54 UTC
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I'm trying to set the Hidden-property of a Textbox based on this expression:

=IIf(IsNothing(Parameters!customer_numbers.Value) AND 
     IsNothing(Parameters!country_codes.Value),False,True)

Error: "Argument not specified for parameter 'FalsePart' of Public Function IIf(Expression As Boolean, TruePart As Object, FalsePart As Object) As Object"

I'm a jScript/C# guy and not used to this pseudo-VB language. What is wrong?

Regards Alex

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