2008R2: Always hide detail row based on expression AND by toggle/drill down

Hi jakub,

According to your requirement, we can refer to the steps below to achieve your goal:

1. Right-click the second row to open the Row Visibility dialog box.


2. Select Hide option, then enable "Display can be toggled by this report item" with MasterPackageName item.


3. Right-click the third row to open the Row Visibility dialog box.


4. Use the expression below to control the Row Visibility:
   
   =iif(Fields!MasterPackageName.Value=Fields!PackageName.Value and CountRows("MasterPackageName")>1,true,false)


5. Enable "Display can be toggled by this report item" with MasterPackageName item.

The screenshot is for your reference:

If there are any other questions, please feel free to ask.

Thanks,

Katherine Xiong

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Katherine Xiong

TechNet Community Support