Properties, JavaScript and Viewstate

[Daniel Buchholz]

Hi all!

I´m trying to build a custom panel control that has the ability to
expand or collapse at runtime without postback. I switch the visibility
property of a DIV to do this.

But what is the proper way of persisting the state of the panel through
a postback cycle. Currently whenever a postback occurs the panel is
rebuilt in its collapsed state. And I have no idea how to use the
viewstate to persist what happens on the client side..

Anyone done that?

Daniel

 

[Teemu Keiski]

Hi,

you could pass the info related to client-side changes for example to hidden
input fields which you read on postback. There are also other solutions and
you could check following free control as a starting point:
http://www.metabuilders.com/Tools/ExpandingPanel.aspx