i have solve this problem ...
1st i have created a virtual database in dataset . not connected with any datatable
then design report with that table after that ...
before printing...
i fill the datatable fields name as my new virtual datatable fields name....
such as in virtual dtable:
Field is
1.ClientsName
2.MonthPayment
3.MonthDue
and in main database table has
1.client_name
2.Januarypayment
3.Februarypayment
4.JanuaryDue
5.FebruaryDue
.. etc field...
i want to create one report and show every month information in it..
so by desinging table with virtual datatable from dataset now i have ... this table fields on report..
now
filling time say:
JanuaryDue as [MonthDue],Januarypayment as [MonthPayment]