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IIf Function

This page is specific to the Visual Basic for Applications (VBA) Language Reference for Office 2010.

Returns one of two parts, depending on the evaluation of an expression.

Syntax

IIf(expr, truepart, falsepart)

The IIf function syntax has these named arguments:

Part

Description

expr

Required. Expression you want to evaluate.

truepart

Required. Value or expression returned if expr is True.

falsepart

Required. Value or expression returned if expr is False.

Remarks

IIf always evaluates both truepart and falsepart, even though it returns only one of them. Because of this, you should watch for undesirable side effects. For example, if evaluating falsepart results in a division by zero error, an error occurs even if expr is True.

This example uses the IIf function to evaluate the TestMe parameter of the CheckIt procedure and returns the word "Large" if the amount is greater than 1000; otherwise, it returns the word "Small".

Function CheckIt (TestMe As Integer)
    CheckIt = IIf(TestMe > 1000, "Large", "Small")
End Function
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