Unanswered: performance issue to expand tree panel if there are more than 20,000 nodes?
I am facing a performance problem for TreePanel now, we have more than 20,000 nodes( depth is 3 - 5 ), when we expand all node, there is an alert popup "Stop running this script? A script on this page is causing your web browser to run slowly, ......". And it takes about 5 minute to finish the operation. Is there any way to resolve this problem? Thanks for any valuable answer or clue!