使用VBA对连续表单进行条件映射（Access 2003）

I have a continuous form in access 2003 on which i need to perform validation using regular expressions in textboxes. I want to call the validation using a button click. I want to use constracts similar to conditional formatting in vba for regular expresions on th textboxes used on th form.I have a continuous form in access 2003 on whic