want to Display the selected table data in the report viewer

Question

hello friends, i am developing a payslip application using C# and access DB. It works fine with single table to store and retrieve data to report viewer, but now i have given a option to create a new table for each month for storing every months data separately. Now my problem is, i want to show the selected months data in report viewer. i mean the table i select should be displayed in the custom designed report viewer. what should i do? i dono how to swap the table there. please help me regarding this problem ASAP.