Crystal Reports: global variable running total not displaying in header

Question

Using Crystal Reports I'm trying to display the running total of a database field in the header where all the labels are.

I've attempted to do this by placing the running total (RTversion) into a formula field with the following:

Shared stringvar CurrentVers; 
CurrentVers := {#CurrentVers}; 

and then in the page header section I have the following:

Shared stringvar CurrentVers; 
EvaluateAFter({#currentVers}); 
CurrentVers; 

with {#CurrentVers} running the 1st largest number.

Is this incorrect?

Update: The goal is to display the latest version in the header near the labels to show what the current verseion is for comparison.

Solution 1

Running-Total Fields, in my experience, only work in the footer sections.

You will need to create a manual running total.

Add a formula field to the Details section that populates a Global variable with whatever you are trying to capture. Something like:

//use WhileReadingRecords if the values can be gathered as the report pulls in values from the database.  Otherwise, use WhilePrintingRecords. 
WhileReadingRecords;
Global Stringvar CurrentVers;
//logic here to capture what you want
CurrentVers:=...

Add another formula field to the Header section. Add these two lines to it:

WhilePrintingRecords;
Global Stringvar CurrentVers;

Solution 2

Create a formula like this

formula = Count ({Field to count},{GroupFieldName}) 

and place it in group header section.

Solution 3

I figured it out..

I had to add a subreport to the main report. I copied the main report and renamed it as a subreport. In the subreport, I added a shared variable and then passed it to the main report. The trick is to place the subreport in the same group header, but a separate section above the section that needs to be suppressed. I actually added the following sections:

New section (same group-I placed subreport here; do not suppress) New Section (same group - I placed shared variable value here; do not suppress) Original Section (same group that has a header I need suppressed based on a running total)

Comments

[Arushi Rajput]

Maybe I'm wrong on this, but I don't think just placing the running total in the header will work because of how the report reads top to bottom. This is off the top of my head so I could be wrong.

[MartW]

They display, but obviously they only reflect the records processed up to that point. But the original question is far from clear on what they're trying to accomplish.

[phill]

How do you do a manual running total to screen for the maximum value of the currentversion? Do you use Maximum() function in the details section? I tried that much and it gave me an error saying it can't evaluate with WhileReadingRecords().

[phill]

I took out WhileReadingRecords, set the currentvers := ... and used the EvaluateAfter() function in the header and it worked.