Decimal Field pattern and Limit Length

Hi,

I have a Decimal Field (Amount), which has the following properties:

Max Leading digits: 15

Max Trailing digits: 2

Now, I want to set the display pattern and edit pattern to this field. When I enter some value, '.00' should add automatically to the end. I tried with some patterns, but when I use any pattern, the Limiting of length is not working.

What is the exact data pattern I have to use?

Note: I am using Adobe Designer 8.0

Thanks,

Prabhakar