jquery cascade dropdownlist will clear after postback
<p>I have made a cascade dropdown list using jquery and ajax, the first dropdown shows states and the second one shows cities according to selected state.
when a postback occurs I can get selected city with this code:</p>

<pre><code>Request.Form[DpCity.UniqueID];
</code></pre>

<p>but the city list will clear. how can I retain the city list values during postback something like using view state?</p>
