Ruth has kindly added a link (further down this comment stream) that may be relevant to your issue. Here it is again:
http://support.microsoft.com/kb/945910

(Looking in the XML) It seems that the server is using the Style element on the subtotal textbox element instead of the conditional formatting that I specified. I’d move the logic there, but I can’t get the same scoping to properly condition on my data.

Identifying the correct ’scope’ for a matrix with one column group and two row groups is tricky. What you have to remember is that there is an ‘in’ and ‘out’ of scope for each cell. Sometimes you will have to repeat a piece of code in several places to get the required effect.

The following code will identify all possible scoped cells:

=IIF(InScope(“matrix1_ColumnGroup”),
IIF(InScope(“matrix1_RowGroup_Inner”),”Blue”,
IIF(InScope(“matrix1_RowGroup_Outer”),”Red”,”Mistyrose”)),
IIF(InScope(“matrix1_RowGroup_Inner”),”DarkGray”,
IIF(InScope(“matrix1_RowGroup_Outer”),”Yellow”,”Lime”)))

I have used hideous colours so as to ensure that you can identify each cell correctly.

Hope it helps!

As I have just mentioned to George (previous comments), you need to think of your groups as containers. The outer group ‘containing’ each of the inner groups. Thus, if a cell is within an inner group’s scope, it is by default within the outer group’s scope too. However, and here’s the trick, if the cell is NOT within the inner group’s scope BUT IT IS within the Outer Group’s scope, that’s where you get a subtotal.

So to amend your expression:

Remember: =IIF(InScope(), ‘true part’, ‘false part’)

=IIF(InScope(“Matrix1_level2″), IIF(InScope(“Matrix1_level1″), “Within Group 1 & 2 Scope”, “Within Group 2 Scope Only (Subtotal)”), “Matrix Scope (or Grand Total)”)

If you are still not clear then perhaps I need to do my first screen cast…

If your groups (A, B, C) correspond to (for example) Year>Month>Day, then yes, InScope(YearGroup) means that MonthGroup & DayGroup will also evaluate to true. Why? Because the YearGroup ‘contains’ the Month/Day groups. Make sense?

To distinguish between detail and subtotals (in this instance) you will need to do the following:

Using the Year>Month>Day example set:

=IIF(InScope(YearGrp),
IIF(InScope(MonthGrp),
IIF(InScope(DayGrp), DetailData,
MonthSubTotal),
YearSubTotal),
GrandTotal)

In plain english:
If the cell falls within the YearGroup bounds, then:
if the cell falls within the MonthGroup bounds, then:
if the cell falls within the DayGroup bounds, then its a detail cell, Else:
it falls outside of the DayGroup but within the MonthGroup, so its a Month Subtotal, Else:
it falls outside of the MonthGroup but within the YearGroup, so it’s a Year Subtotal, Else:
it falls outside of the year group, therefore it must be a Grand Total (All Years).

Whew!

If you Start from the very outer group and work your way in to the Detail groups then you can (fairly) easily determine the Grand Total & Subtotals – because they fall Out-of-Scope of the group in question.

So, to answer your question. Yes you will get a ‘True’ for Group B/C (for your current query). To fix that you need to specify, for each of Group B & C, the ‘False’ criteria (i.e. what should be shown if not within the bounds of the group in question).
The example I have given above should help you out in distinguishing between the detail, subtotal & grand total lines.

If you have more questions, please let me know. This is a hot topic!

I am new to SSRS matrix report. I am currently facing the following problems:

. I have no column grouping
. I have two rows grouping Matrix1_level1 and Matrix1_level2

I have the following expression inside a cell in a matrix data region.

=iif(inscope(“Matrix1_level2″),
“Within Group2 Scope”,
iif(inscope(“Matrix1_level1″),
“Within Group1 Scope”,
iif(inscope(“matrix1″),
“Within Matrix Scope”,
nothing)))

But this is not working. The result I get is this.
On both group1’s line and group2’s line as “Within Group1 Scope”.
and subtotal
“Within Matrix Scope” message is showing up ok.