IIf Function

Devolve un de dous posíbeis resultados de función, dependendo do valor lóxico da expresión avaliada.

Sintaxe:


IIf (Bool As Boolean, Variant1 As Variant, Variant2 As Variant) As Variant

Parámetros:

Bool: Any expression that you want to evaluate. If the expression evaluates to True, the function returns the value of Variant1, otherwise it returns the value of Variant2.

Variant1, Variant2: Any expression, one of which will be returned as the function result, depending on the logical evaluation.

IIf evaluates both Variant1 and Variant2 even if it returns only one of them. If one of the expressions results in error, the function returns the error. For example, do not use IIF to bypass a possible division by zero result.

Códigos de erro

5 Chamada de procedemento incorrecta

Exemplo:


REM Returns the maximum of 3 values
Function Max (A As Double, B As Double, C, As Double) As Double
    Max = IIf( A >= B, A, B)
    Max = IIf( C >= Max, C, Max)
End Function
REM Bad usage of function IIf
Function Inverse(A As Double) As Double
    Inverse = IIf( A = 0, 0, 1/A )
End Function

If or Select Case statements

Función Switch