>Now I have another question... I may want to let the user leave the field that I'm validating with incorrect data _if_ they are hitting the "cancel" button.

Make sure you set the Cancel buttons Cancel property to .T.

Then, in your Valid(), put:

if lastkey() = 27
	return .t.
else
	&&Normalcode
endif

because if you press a cancel button, it makes the last key equal to hitting the escape key.