Displaying only the last of a sequence in Crystal Reports - crystal-reports

Question

I have a report that will occasionally have more than one detail record in a group. In such a case I only want to display the last in the sequence. I have a sequence number associated with each record so I need to suppress all detail rows in the group other than the one with the maximum sequence number.
I've tried using a global variable to recalculate the max value as of each detail record but I haven't been able to write a formula that, while printing, can use this maximum sequence number to suppress the row if it does not contain a value equal to the max sequence number.

Answer 1

From what i understand you have data organized by this:
Data1 Data2 SeQuencenumber
1 a 1
2 b 1
2 c 2
2 d 3
And from what i understand your want your output look like (group by Data1):
Data1 Data2 SeQuencenumber
1 a 1
2 d 3
To do so you need to write formula in detail section which compares your current detail sequence number and count of all for that group (Data1). Right-click your detail section and write formula here
Formula looks like :
if {SequenceNumber} = count ({SequenceNumber},{Data1}) then true
else false
Hope it helps, if you have any further questions feel free to ask.

Answer 2

try like this:
Shared Stringvar array concatenate;
concatenate:=concatenate+CStr(Sequencenumber);
now in suppress condition of details:
Shared Stringvar array concatenate;
if Maximum(concatenate)=Sequencenumber
Then false
else true

Answer 3

I had tried a solution similar to the one from KuKeC but with the maximum function instead of count. But while reviewing the KuKeC solution I finally saw that I was already suppressing the detail band when a date in the detail did not match a parameter date, yet the maximum function was giving the max of all data whether displayed or not.
So I first needed to add a formula field that would return the sequence number only if the data date matched the parameter date
if {PSLRegister.PSLRPPStartDate} = {?PP_Start_Date} then
{PSLRegister.PSLRSeqNo}
else
0
then I used this formula field in the equation to suppress the detail record
Maximum({#SeqIfDateMatch}, {TrnsltEmployee.TSEmployeeID}) <> {PSLRegister.PSLRSeqNo}
Thanks to all