I'm sorry but I apparently don't understand your question.
Again, all our property does is set the Form's AcceptButton property to the Next or Finish buttons, based on the setting you supply. After that, it's Windows Forms that controls the ENTER processing behavior. If you are focused on a control that processes the ENTER key, such as another Button or multi-line TextBox, the "accept" button will not fire. If you are on a control like a regular TextBox and press ENTER, the "accept" button should file. Our code doesn't intercept the ENTER keypress, this is handled by the system. You should also see a different system-based border highlight on the active "accept" button.