Ciao Mackers...sorry if i disturb you again.

I tested your set but i receive an error that tell that:

i TRANSLATE from italian,...

IT IS EXPECTED A HIERARCHY EXPRESSION INSTEAD YOU DID A MEMBER EXPRESSION...

So i discover with your help , the error...

Syntax correct is without .[All Marca_Modello] ...(you could not know extacly my dimensions and their attributes ) that is...:

with set [MIs] as

Filter([Marca_Modello].[Codice Merceologia].Members

,Left([Marca_Modello].[Codice Merceologia].CurrentMember.Name,2) = "MI")

SELECT

[MIs]

ON COLUMNS,

[Measures].[Importo Venduto] ON ROWS

FROM Vendite

WHERE [Anno].[All Anno].[2012]

Sincere thankings to you... !!!!!!!!!!!!

PS. Now i know i have to use also VB Functions....with MDX...

Thanks again...

🙂