How to Persist server side table

<i><b>Originally posted by : rensri</b></i><br />I have aspx which has two buttons and a Table. All are server side controls with runat="server"<br />On clicking button1 , table is generated and on clicking button2, it gives the number of rows in a table.<br />Problem is when I hit button 2 , table is refreshed and the data is lost and brings up a empty table.<br />How to persist the values in a serverside table control?<br /><br />Thanks<br /><br />