How to suppress header section in crystal report

Question

I have a problem in crystal report where my header section should be suppress when there is no records in the detail section

I have used this technique bt still hving problem

Page Header

WhilePrintingRecords;

NumberVar total;

total := 0

Detail section

WhilePrintingRecords;

NumberVar total;

total := total + 1;

Page Footer

WhilePrintingRecords;

NumberVar total;

Pls Help me Out