Read the table row data and dispaly it in the ME21n transaction

Hi All,

i'm new to ABAP and OO ABAP .Please somebody help me out for my req. My req is , when i double click on the table row which is having PO details , then that data should be displayed in the ME21n transaction. please some on tell me how to achive this using SALV class..

thanks,

Rajeev.