AJAX :: JS Stops Working After DropDown Filled With Code Behind?

Jan 10, 2011

I am using asp:ScriptManager and asp:UpdatePanel to populate a DropDown , and for every field need to display hits in div.In order to Implement the hint I am using JS, it works fine unless I started to populate a dropdown based on another one.

here is some code lines from page and JS

<asp:ScriptManager ID="sm" runat="server" EnablePageMethods="true"></asp:ScriptManager>
<asp:UpdatePanel runat="server" ID="up0">
<ContentTemplate>
<dd><asp:DropDownList runat="server" ID="CCategory" CssClass="lst" ValidationGroup="Property" AutoPostBack="true" onselectedindexchanged="CCategory_SelectedIndexChanged" /><span class="hint">Please choose a city where you want to or having a property.<span
class="hint-pointer"> </span></span></dd>........

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