Load data into server controls

I am using Atlas to get a list of Serial numbers from a database as the user types in part of the serial number. It works great. Now I want to be able to populate other textbox controls on the form as the user types in that serial number. Is this possible using Atlas? I know I could put a button next to the serial number so when they get the serial number they are looking for they could submit the form and I could do a "SELECT * FROM inv_assets WHERE sserial_num = txtSerialNum.Text, but this would cause the page to refresh and I would really like to somehow populate the rest of the form as the user types in the serial number.

perhaps using a placeholder into an updatepanel.