how to add/remove columns dynamically in crystal reports using c#

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C#

CrystalReports

reporting

I am currently working on a management project where i want to print fee details using crystal reports.
The problem is that the fee heads(its name) will be added dynamically by the client in the software. So, now when i am preparing the report i will have to add all the fee heads that client have created as columns in the report. I have seen many solutions here, but they all tell us to add all the columns and hide those not required. But here before hand i dont know how many columns would be there, how can i add the columns.
Eg:

The report could br like:

Class Adm_FEE TermI TermII TermIII Bus //client may have created more or less columns
I 2000 2000 3000 1000 200
II 20999 2322 3332 1233 1233
....
....
.....


Kindly help me guys.....