Web Forms Table

Question

I have a web forms table that I have built with six row initially. The last row has a save button. When I click on the button, I want the table to grow by three more rows for the next step in our process. I have the page built with SQL 2005 stored procedures. This is done in a function called from the page_load event. The problem I have having is that the table does not automatically grow. I have to click on the back button and then redirect to the page again to see the new rows. I do not want my users to have to do this for all seven steps. Is there a way to have a web forms table grow at run-time with a click of a button in the table itself?