1 Create a query to transfer you table:
Query: UnionQry
Code:
SELECT Jan2Dec.Nname, 1 as mMonth, Jan2Dec.Jan as Expense FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 2 as mMonth, Jan2Dec.Feb FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 3 as mMonth, Jan2Dec.Mar FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 4 as mMonth, Jan2Dec.Apr FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 5 as mMonth, Jan2Dec.May FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 6 as mMonth, Jan2Dec.Jun FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 7 as mMonth, Jan2Dec.Jul FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 8 as mMonth, Jan2Dec.Aug FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 9 as mMonth, Jan2Dec.Sep FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 10 as mMonth, Jan2Dec.Oct FROM Jan2Dec union all
SELECT Jan2Dec.Nname, 11 as mMonth, Jan2Dec.Nov FROM Jan2Dec UNION ALL
SELECT Jan2Dec.Nname, 12 as mMonth, Jan2Dec.Dec FROM Jan2Dec;
2 set the vaules of your comboBox startMonth and EndMonth from 1 to 12,
3 use following as data source of your report:
select nName, sum(expense) as eExpense from unionqry where mMonth betwee forms!yourform.startMonth and forms!yourform.endMonth