Re: Suppress printing of an instance of a group in Crystal Reports 11.

Hi Abhilash,

Thanks for the Help.  I read the section Report Processing Model, which includes Multi-pass reporting
flow chart.  I got to the point where it discusses pass 2, and it says "Crystal Reports does the following:"
Out of the 3 things it lists, Group selection formulas precedes Calculation of formulas marked
"WhilePrintingRecords."  I am trying to understand if this order of evaluation is the problem of my
original approach using global variable to accomplish group selection.  My approach is as follow:

//Formula to declare, place in report header.

Global BooleanVar HasRequiredData;
 
//Formula to initialize, place in group header.

Global BooleanVar HasRequiredData;
WhilePrintingRecords;
HasRequiredData := false;

// Formula to verify each grade, place in details section.

Global BooleanVar HasRequiredData;
WhilePrintingRecords;
If {grades.grade_prd_str}[5 to 6] = {?prmGradePrdStr} [5 to 6] Then
HasRequiredData := true;

// (debug) Formula to print the value of HasRequiredData, place in group footer.
WhilePrintingRecords;
Global BooleanVar HasRequiredData;

// Group selection formula

Global BooleanVar HasRequiredData;
WhilePrintingRecords;
If HasRequiredData = true Then
    true
Else
    false

With this approach, all group instances are printed, but details sections are all empty.
Any thoughts?  Should I avoid using variables in Crystal Reports?

Thanks

Caroline