Collapsible Panel Extender

[David C]

I am using a CollapsiblePanelExtender to show/hide a FormView control inside
another FormView and it works great. Now I would like to know when that
Panel is collapsed in code but I do not know how to reference it in my page
code. Can someone tell me how to reference it and how to check its "state"?
Thanks.

David

 

[Nathan Sokalski]

You can use the Collapsed property. This is a Boolean property, so it should
be pretty simple to use. Good Luck!

 

[msnews.microsoft.com]

My problem is that the page does not postback so I cannot check the
property. Do you know if there is some way in javascript to handle this?
Thanks.

David

 

[Nathan Sokalski]

The CollapsiblePanel Extender generates a hidden field with the ID
extenderid_ClientState. I have not yet looked into what it uses for the
values, but you can easily find this out by using something like:

window.alert(document.getElementById('extenderid_ClientState').value);

If you put this in a button, you can change the state as you normally would
and then click the button to see what the value is afterwards:

<asp:Button runat="server" Text="extenderid_ClientState"
OnClientClick="window.alert(document.getElementById('extenderid_ClientState').value);return
false;"/>

Hopefully this helps.