Multiple select parameter with each selected value covering multiple sub values

Question

Hello, everyone,
In my SSRS report, I need to set a multiple select parameter called Group, with values: group1 group2, etc....
When group1 is selected, it needs to apply to data of certain sub groups: sub-group1, sub-group2;
When group2 is selected, it needs to apply to data of different sub groups: sub-group3, sub-group4 and sub-group5;
when both group1 and group2 are selected, then, it needs to apply to data of sub-group1 to sub-group5.
I know how to do it when only one group is selected: simply use a case statement in the query to select the right sub groups based on the group selected.
But I don't know a good way to do it when multiple groups are selected.
Any help, pointers are much appreciated. Thanks in advance!
Regards

Answer 1

Hi QQFA,
If I understand correctly, there are two parameters (Group and Sub_group) in the report. When we select group1 in Group parameter, it will auto select sub-group1, sub-group2 in the Sub_group parameter; when we select group2 in Group parameter, it will auto
select sub-group3, sub-group4 and sub_group5 in the Sub_group parameter; when we select both all, it will auto select all sub_group values. If I have misunderstood, please don't hesitate to let me know.
In this scenario, we can create a temporary table with Group and Sub_group columns, then select Sub_group column values based on the Group field. For more details, please see:
Create a dataset with the query below:
CREATE TABLE #temp([group] nvarchar(50),sub_group nvarchar(50))
INSERT INTO #temp VALUES     ('group1','sub-group1'),('group1','sub-group2'),('group2','sub-group3'),('group2','sub-group4'),('group2','sub-group5')
SELECT * FROM  #temp
where [group]  in (@Group)
Set available values and default values of Sub_group parameter with get values from the sub_group field in the new dataset.
Note that the two parameters are all multiple parameters.
If there are any misunderstanding, please elaborate the issue for further investigation.
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support