组合框ajax控件

Question

i have a filter panel with 5-6 combo boxes ajax control tool kit..

i want this filter panel to be visible false by default.. and toggle it(show/hide) on client click using java script

however when i have my filter panel as visible = false runat=server java script does not get the object

and if i do code behind.. filterpanel.attributes.add("style",display:none) filterpanel.attributes.add("style",visibilty:hidden)

the combo box throws a runtime error..

i've searched on the net which says.. combo box is difficult to render inside a panel.. whose default property is initially false!

Answer 1

The issue is that if you set Visible="false" on a server control, it won't render any of the HTML elements, including the combo boxes. Hiding the panel using the following is AJAX friendly:

<asp:Panel id="p" runat="server" style="display:none">

</asp:Panel>

Which will render a DIV and all your drop downs, but hide them from view, allowing you to toggle the div's visibility.