Need help, I have 2 buttons and I need one button to cancel selected printjobs and the other button to cancel all printjobs.

My GUI has a combo box where I can select a printer ( from printers that I enumerated into the combo box via wmi using the win32_Printer class and I have got wmi using win32_PrintJob to allow me to swap between the different printers job ques.

Just need 2 examples to show me how to cancel selected printjobs from a listview and all printjobs from a listview from the selected printer(s).

Thanks