title: Auto refresh ASP.NET web page after defined interval?
body: <p>In one of my website, i required to implement automatic refresh of webpage after 15 minute.</p>
  
  <p>For this to achive i have write following line of code</p>
  
  <pre><code>&lt;meta http-equiv="refresh" content="60;url=" /&gt;
  </code></pre>
  
  <p>But i am facing one problem that after this duration of 15minute page will refresh as a new page load.</p>
  
  <p>At my page i have used combo box having city list, there is a case when i select an item from this list at index 3. After that i just make page idle and after 15 minute page is refresh with the script i write for auto post back (mentioned above). But the problem is that due to this page is reload as a new page and code inside <code>(!PostBack)</code> execute which refill combobox and reset at index 1. </p>
  
  <p>Please help me to solve this problem?</p>
  
  <p>My basic requirement is that whenever user reaches that page and makes it idle for longer time, session should not expire and hence i am writing above script so that session would be live.</p>