Question

How to create report textbox aggregate expression in SQL server reporting with multiple datasets

Asked by: Al230762

If have a SQL Server Reporting Services report that has several textboxes within a ReportFooter rectangle with variations of the following expression:
=(Sum(IIF((Fields!CurrentIEPtypeID.Value=7, 1, 0)))
These all worked fine until I added a 2nd dataset to the report. These expressions continue to work OK where they are situated inside a GroupLevel List. For each of the textboxes in the ReportFooter I now see the following error when I try to preview the report:
"rsMissingAggregateScope] The Value expression for the textbox Text72 uses an aggregate expression without a scope.  A scope is required for all aggregates used outside of a data region unless the report contains exactly one data set."

I have tried adding the scope to the expression with variations of the following:
=(Sum(IIF((Fields!CurrentIEPtypeID.Value,"Datasource")=7, 1, 0)))
but there is always a syntax error.
Does anybody know the correct syntax please?

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Asked On
2009-08-07 at 04:49:35ID24634378
Topics

MS SQL Reporting

,

SQL Server 2005

Participating Experts
2
Points
500
Comments
7

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Answers

 

by: HadushPosted on 2009-08-07 at 14:47:40ID: 25047202

You need to use the text box name with ReportItems expression if you want to use out of the scope.

=SUM(IIF(ReportItems("CurrentIEPtypeID.").Value=7,1,0))

For more information you can refer this link which have more expression on reporting services. http://msdn.microsoft.com/en-us/library/ms157328.aspx

 

 

by: chrismcPosted on 2009-08-07 at 15:03:44ID: 25047278

I'm surprised that works in the report footer. I didn't think you could place data there at all.
I suspect you mean it's placed outside of the data control.
In which case, the field can only refer to an aggregate, i.e. a Sum or the First or the Last value.
Because you are outside of a data control it can't know which exact row you want it because, in that scenario, the expression doesn't make sense it can't assume a total as it often will.

So, to help you I think you need to clarify a few more things.

The report footer can be turned on and off by righjt clicking outside the page area and you will have the option to turn on or off the report header and footer.
These are separated areas from the main part of the page. Is this where your text box is?

In your 2nd expression, your brackets don't match up properly.
You have IIf((Fields!CurrentIEPtypeID.Value, "Datasource")
The datasource argument is not valid for the IIf statement, I think you meant it to be on the SUM.

So exactly what are you trying to achieve with this textbox?



 

by: HadushPosted on 2009-08-07 at 15:17:14ID: 25047345

I was thinking same thing but I tested with IIF statment and it woks, in fact a gave it a count with values greater than some value and it gives the proper result on the footer with out naming the datset. Remember every text box has unique name.

 

by: chrismcPosted on 2009-08-07 at 15:51:24ID: 25047472

Hi Hadush,

I meant the authors 2nd expression looks syntactically incorrect, not yours. :)
But it's useful to know about data in the footer. I've tried to do that in the header before and failed!

cheers
Chris

 

by: Al230762Posted on 2009-08-09 at 12:35:00ID: 25055598

Thanks to both of you for your suggestions and help. I think I may have given confusing information  - I think chrismc thought I was referring to the PAGE FOOTER when I described the expressions working OK in the "Report footer" - I was referring to a rectangle with the NAME of  "ReportFooter" but actually situated in the Body section - this rectangle had automatically acquired the name "ReportFooter" when it was imported from an old Access database - so apologies for that.

However, since posting the question I have created a subreport in place of the 2nd dataset which has solved the problem and is clearly a better option as it must be used in 8 other similar reports. Thanks again, points awarded to both experts.

 

by: Al230762Posted on 2009-08-09 at 12:37:22ID: 31612829

Resolved by using a subreport rather than a 2nd dataset

 

by: chrismcPosted on 2009-08-09 at 12:53:32ID: 25055669

Thanks for the points, and yes "Page Footer" was what I thought you were referring to.
In your scenario where it's used 8 times a sub-report is probably a good solution.

BUT in 2005 it's not that efficient so don't over use them.

Cheers
Chris

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