>>>Now, I need something similar for the type of the field and the number of decimals for numeric field.
>>>
>>>I want to modify my base textbox control to be able to set the input mask automatically.
>>
>>Use AFIELDS() function.
>
>As mentioned to Nick, this is too slow. If I have 50 controls on my form, I can afford to use AFIELDS() for that purpose. Thanks.

Probably you want to say "I CAN'T afford". As I said, use it just once for each table in the init your app. With a good naming convention, it must work well.

Vlad