SSRS report with tabular model - MDX query to filter parameter data based on Tuple value.

Question

Hello Everyone,
I am working on SSRS report in which a tabular model is being used as a backend.
I want to filter the report parameters which are dependent to other parameters. Like, country, state, and cities drop downs.
All are multi-select parameters. I am using MDX queries to filter the parameters data.
Based on selected one or more countries, the data of states needs to be filtered.
The point is the text which is being displayed in state dropdown for each state name is combination of 3 different members.
So, I created the following Tuple for the same and can see the expected display names in states dropdown.
"("+
[Location].[Code 1].CURRENTMEMBER.UNIQUENAME +","+
[Location].[Code 2].CURRENTMEMBER.UNIQUENAME +","+
[Location].[Descr].CURRENTMEMBER.UNIQUENAME +")"
Now, when I would like filter the cities data based on selected one or more states, I am unable to pass the multiple Tuples (more than one selected Tuples) as parameter for cities dropdown.
The following is my query for City parameter. It is working well when I select only one State from the dropdown.
However, when I select multiple states, it is unable to convert the Tuple into SET in ELSE part of IIF condition specified in following query.
Can anybody help me how to resolve the error that I am getting about STRTOSET function?
Or
Are there any other alternatives to achieve this requirement?
Any help would be much appreciated.
Query:
WITH MEMBER [Measures].[ParameterCaption] AS [City].[City Business].CURRENTMEMBER.MEMBER_CAPTION
MEMBER [Measures].[ParameterValue] AS [City].[City Business].CURRENTMEMBER.UNIQUENAME
MEMBER [Measures].[ParameterLevel] AS [City].[City Business].CURRENTMEMBER.LEVEL.ORDINAL
SELECT {[Measures].[ParameterCaption], [Measures].[ParameterValue], [Measures].[ParameterLevel]} ON COLUMNS ,
[City].[City Business].Children ON ROWS
FROM (
SELECT ( STRTOSET(@State, CONSTRAINED) ) ON COLUMNS FROM [Model])
WHERE ( IIF( STRTOSET(@State).Count= 1,
STRTOTUPLE(@State, CONSTRAINED),
STRTOSET("{
("+
[Location].[Code 1].CURRENTMEMBER.UNIQUENAME +","+
[Location].[Code 2].CURRENTMEMBER.UNIQUENAME +","+
[Location].[Descr].CURRENTMEMBER.UNIQUENAME
+ ")
}",CONSTRAINED )) ) CELL PROPERTIES VALUE
Thanks, Ankit Shah
Inkey Solutions, India.
Microsoft Certified Business Management Solutions Professionals
http://www.inkeysolutions.com/MicrosoftDynamicsCRM.html

Answer 1

Hi,
I used following dynamic query in expression of dataset of parameter and it works like a charm.
"WITH MEMBER [Measures].[ParameterCaption] AS [City].[City Business].CURRENTMEMBER.MEMBER_CAPTION "&
"MEMBER [Measures].[ParameterValue] AS [City].[City Business].CURRENTMEMBER.UNIQUENAME "&
"MEMBER [Measures].[ParameterLevel] AS [City].[City Business].CURRENTMEMBER.LEVEL.ORDINAL "&
"SELECT {[Measures].[ParameterCaption], [Measures].[ParameterValue], [Measures].[ParameterLevel]} ON COLUMNS , " &
"[City].[City Business].Children ON ROWS " &
" FROM [Model] WHERE ({"& join(Parameters!Location.Value,",") &"}) CELL PROPERTIES VALUE"
Thanks, Ankit Shah
Inkey Solutions, India.
Microsoft Certified Business Management Solutions Professionals
http://www.inkeysolutions.com/MicrosoftDynamicsCRM.html