SSAS MDX calculation filter - filter

Question

I would like to do something like this (tsql):
select saldi
where rek in (4,8)
and rek5 <> 41111
and rek3 not in (a,b,c)
Following MDX, filter (4,8) <> 41111, is not working. If I remove the 41111 filter the measure works fine, just shows 4/8. Adding 41111 as a '<>' filter and the result is blank, not even 0.00.
THIS = IIF(
( [Rekeningen].[Rek n1].CurrentMember = [Rekeningen].[Rek n1].&[4]
or [Rekeningen].[Rek n1].CurrentMember = [Rekeningen].[Rek n1].&[8] )
and [Rekeningen].[Rek n5].CurrentMember <> [Rekeningen].[Rek n5].&[41111]
,
[Measures].[Saldi], 0.00
);
I tried Google, but don't seem to get the keyword right. On social.msdn.microsoft.com a lot of reactions are marked as answer, but not for me this far.
Deploying the ssas cube works fine, no errors.
Can anybody point me in the right direction? I tried Except, but that command doesn't seem to work with multile fields(rek3/rek5).

Answer 1

IS and NOT IS are used when comparing members. That gives us this:
THIS =
IIF
(
(
[Rekeningen].[Rek n1].CurrentMember IS [Rekeningen].[Rek n1].&[4]
OR
[Rekeningen].[Rek n1].CurrentMember is [Rekeningen].[Rek n1].&[8]
)
AND
[Rekeningen].[Rek n5].CurrentMember IS NOT [Rekeningen].[Rek n5].&[41111]
,[Measures].[Saldi]
,0
);
Rather than 0 you should nearly always use null in cube script calcs or you'll kill performance:
THIS =
IIF
(
(
[Rekeningen].[Rek n1].CurrentMember IS [Rekeningen].[Rek n1].&[4]
OR
[Rekeningen].[Rek n1].CurrentMember is [Rekeningen].[Rek n1].&[8]
)
AND
[Rekeningen].[Rek n5].CurrentMember IS NOT [Rekeningen].[Rek n5].&[41111]
,[Measures].[Saldi]
,NULL
);
I'm not convinced about these member names? [Rekeningen].[Rek n1].CurrentMember and [Rekeningen].[Rek n1].&[4]. Let me add the two alternatives that I think they might be:
1.
THIS =
IIF
(
(
[Rekeningen].[Rek n1].CurrentMember IS [Rekeningen].[Rek n1].[Rek n1].&[4]
OR
[Rekeningen].[Rek n1].CurrentMember is [Rekeningen].[Rek n1].[Rek n1].&[8]
)
AND
[Rekeningen].[Rek n5].CurrentMember IS NOT [Rekeningen].[Rek n5].[Rek n5].&[41111]
,[Measures].[Saldi]
,NULL
);
or
2.
THIS =
IIF
(
(
[Rekeningen].CurrentMember IS [Rekeningen].[Rek n1].&[4]
OR
[Rekeningen].CurrentMember is [Rekeningen].[Rek n1].&[8]
)
AND
[Rekeningen].CurrentMember IS NOT [Rekeningen].[Rek n5].&[41111]
,[Measures].[Saldi]
,NULL
);