hi
i m assuming it is in windows u can do the same way in web also
First create one stored procedure for getting this data
you can write group by query with department and then section and then take count of employees according to their hierarchy.
follow this given step:
http://csharp.net-informations.com/crystal-reports/csharp-crystal-reports-stepbystep.htm
and instead of table try to add your stored procedure for crystal report source
or try this with dataset
Step by Step Creation of Crystal Report using its Features Group, Graph, Cross-Tab and Sub Report[
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