How to write the code without disturbing page data to get the previous page values?
<p><img src="http://i.stack.imgur.com/mWfQN.png" alt="gridview dropdown"></p>

<p>Hi,</p>

<p>I am taking gridview, with in grid use the dropdown based on customer retrieve the database values in dropdown, but my issue is with in dropdown <strong>"Add New Item"</strong> (second column)is taking, so customer select the that field open the new page and add the values, after adding the item automatically close the page and mainpage dropdown automatically added without disturbing the other values how is it possible?</p>

<pre><code>  I am using ASP.NET2.0
</code></pre>
