Solved

Crystal Reports Field Cannot Be Summarized Error

Posted on 2009-04-09
6
1,851 Views
Last Modified: 2012-05-06
When passing a variable from a subreport to the main report, an error is received when trying to Count or Sum this variable from the subreport: This field cannot be summarized when using Count({subreport variable}).  The variable in the subreport does a Distinct Count of employees.
The main report is grouped by employees then by location.  A total of the Distinct Count of employees is need by Location.
0
Comment
Question by:garyjgs
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
6 Comments
 
LVL 6

Expert Comment

by:namanpatel
ID: 24108656
Count can be used with database field, formula field or array of values. Please make sure you are passing variable of array type.
0
 

Author Comment

by:garyjgs
ID: 24108828
This is the variable passed to the Main Report:
//@SubFormula
//Count of teachers teaching core classes
//{#emp nr distinct ct} field
//Shared variable

WhilePrintingRecords;
Shared numberVar TeachersCoreClassCt := 0;
Shared numberVar TeachersCoreClassCt := {#emp nr distinct ct};
TeachersCoreClassCt

When in the Main Report, this variable TeachersCoreClassCt needs to summed.  
0
 
LVL 101

Accepted Solution

by:
mlmcc earned 500 total points
ID: 24110453
Summary functions are runduring the readingrecords pass through the report.
Shared variables are evaluated later in the generation (printing pass) and thus cannot be used in summaries.

To sum it you will need to have  formulas in the main report to do the summing

In the report header
WhilePrintingRecords;
Global NumberVar TeacherCount := 0;

In a section after the subreport
WhilePrintingRecords;
Global NumberVar TeacherCount;
Shared numberVar TeachersCoreClassCt;
TeacherCount := TeacherCount + TeacherCount;
''

To display it
WhilePrintingRecords;
Global NumberVar TeacherCount;
TeacherCount

mlmcc
0
Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

 
LVL 35

Expert Comment

by:James0628
ID: 24113064
One small, but important, correction to mlmcc's middle formula.  It should read:

TeacherCount := TeacherCount + TeachersCoreClassCt;


 Also, just to clarify, that formula needs to be in a separate section from the subreport, to make sure that it is evaluated after the subreport.  For example, if the subreport is in a Location group footer section, create another Location group footer section below that and put the formula there.  You can suppress the new section.  The formula will still be evaluated.

 James
0
 
LVL 101

Expert Comment

by:mlmcc
ID: 24116847
Thanks James.  Too quick with the paste.

I agree it should be in a later section though if done in the correct order it will work in the same section.  I always do it in a later section to ensure it works since it is too easy to get the order wrong if it is in the same section.

mlmcc
0
 
LVL 35

Expert Comment

by:James0628
ID: 24120408
That's the thing.  I don't know of any way to make sure that the formula is evaluated after the subreport if they're in the same section.

 James
0

Featured Post

[Webinar] How Hackers Steal Your Credentials

Do You Know How Hackers Steal Your Credentials? Join us and Skyport Systems to learn how hackers steal your credentials and why Active Directory must be secure to stop them. Thursday, July 13, 2017 10:00 A.M. PDT

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Crystal Reports: 5 Tests for Top Performance It is complete, your masterpiece report.  Not only does it meet your customer’s expectations, it blows them out the water, all they want is beautifully summarised and displayed in a myriad of ways. …
There have always been a lot of questions related to when Crystal Reports evaluates report components (such as formulas, summaries, cross-tabs, charts, to name a few examples). Crystal Reports uses a two-pass reporting process to provide greater …
In this video, viewers are given an introduction to using the Windows 10 Snipping Tool, how to quickly locate it when it's needed and also how make it always available with a single click of a mouse button, by pinning it to the Desktop Task Bar. Int…
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …

635 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question