How do I make a button execute on user pressing Enter on the keyboard

Pressing enter usually only impacts the control that has focus.

Can you describe more of the screen’s purpose so we can figure out if there’s another way to invoke that logic?

The screen is for entering data using a bar code scanner. The scanner will enter the text it reads from the barcode/qr code into a text field and press enter. I would like the “Submit” button to be pressed when it happens. The screen is designed around not all users having a barcode so they can enter the data themselves as well.

Scanners can typically be configured to send additional keystrokes after the scan. That would let you press enter in the field and then you can use the CommitChanges on the field that they are scanning into. That should do what you need.