I'm rewriting an application (converting from VB to C#). The application contains a list box, which contain file names. In the old VB application if a user clicked Ctrl+b while one of the the files in the list was highlighted it would open the file up in a text box. I'd rather just open the file up in a notepad, but I'm comfortable doin it either way. Just need to know how to add that functionality to the listbox item so that when its selected/highlighted and the user clicks Ctrl+b it will open the file.