Not being able to use the enter key slows down data entry, especially when entering a series of numbers from the keypad.
It is accepted keyboard practice with most other PC applications and it would reduce user antagonism when using data entry forms.
This method would fire for each key entered while in a text or numeric field. The method would have the key pressed as a parameter, and parameters for shift,control and alt keys. The method would return the key pressed by default.
This would allow the developer to mask/modify/format during data ...