Single line edit and enter button

Hello

We have a page that adds data to a table. The page is composed of many database fields and is only to be used for adding records in the table. One of the fields is a single line edit field. When some one enters data in this field and presses enter the page is re-drawn in a form grid mode. We would like the page to be submitted and the record added to the database. How can this be done. Please note that similar behavior can be seen on the example pages on aspdb.com