how to avoid reloading Rad Tree List

Question

I am using Telerik Rad Tree List. when expanding the tree , it is postback and get child data from server. it is ok. but when collapse the tree, the page is again reload.

i am not sure, it is default action in telerik tree list.

i am using vs2010 and sql server 2008 for my web application.

How to avoid the reloading while collapse the tree.

Thanks, Pooja

Answer 1

The TreeList will still have to do a postback when you expand because the parent node's children get created on expand. I believe this is how it loads -- I am facing the same problem actually. But if you want to decrease time it takes to reload the page, you can "ajaxify" it. Refer to this link: http://www.telerik.com/help/aspnet-ajax/treeview-onclientnodeclicking.html

If you really want to get rid of the postback, refer to this link: http://www.telerik.com/help/aspnet-ajax/treeview-onclientnodeclicking.html But that's for TreeView, might work on TreeList. I still think it'll go back to the server when you try to structure on the client-side.

Answer 2

write the client side onclientnodeclicking event and check if node is expand then write code for collapse.