how to page auto refresh in asp net after timeout

Add this tag under header section in your master page

<meta http-equiv='refresh' content='9000;url='yourpage.aspx' />

content refers the time in seconds.

url, the page which u needs to be refreshed in certain time interval

<meta http-equiv='refresh' content='5000' />
//Mention required milli seconds in content,which refresh your current page at the given interval of ms.

Other way to do that is:

setTimeout(function() {
 location.reload();// load your page after every 5 seconds
}, 5000);

5000 is in milliseconds you can mention the time as per your requirement..

How To Autorefresh A Page Every Two Minutes?[^]

For page refresh

<meta http-equiv="refresh" content="120">

And for grid bind write a function to bind grid say bindGrid().

use this code to call this function on pageload.

protected void Page_Load(object sender, EventArgs e)
   {
       if(!IsPostBack)
       {
           bindGrid();
       }
   }

Best of luck.