HOW TO SELECT MULTIPLE SERIES?

HI
   I HAVE SERIES LIKE MAIN,SUB,ALL, WHEN I SELECT ONE OF THE SERIES ,SHOULD DISPLAY PARTICULAR DATA ON GRID IN 3 TIER C#.WHERE AND HOW TO GIVE CODE?INCASE IF  NUMBER OF SERIES HAVING.... I MADE A FORM FOR SERIES AND THERE A VIEW BUTTON ,WHILE CLICK GRID FORM ARISE.....