View Full Version : [OPEN-1103] IE8 TreePanel flashes when node clicked

6 Jul 2010, 3:02 AM
Ext version tested:

Ext 3.2.1

Browser versions tested against:


Operating System:



if there is a horizontal scroller in treePanel, left click tree nodes randomly will cause the tree flash

Steps to reproduce the problem:

1. open http://www.sencha.com/deploy/dev/docs/
2. expand some nodes from the left tree panel until the horizontal scroller appear.
3. click around.

6 Jul 2010, 4:17 AM
I have met the same problem, and this issue only appears under IE.

6 Jul 2010, 4:26 AM
And there can be easily reproduced in examples provided within ExtJs.
1. Put extjs package to a web-container.
2. Open ext\examples\tree\two-trees.js, at the line 21 of the file, modify the width value to 100.
3. Use IE8 browser to view the "two trees" example. (such as http://localhost/ext/examples/tree/two-trees.html)
4. Expand the left tree and click around the leaves.

18 Nov 2012, 11:08 PM
Hello friends,

Is there any update the issue ?

Few days back I ran into the same issue while working with Ext 4.1.2 version. My tree panel nodes flick/flash before expanding, when I click on the plus/minus icon. This is happening only with IE8,working on Windows 7.

Other bowsers make the expand/collapse animations smooth.

Any lead on this issue will be of gr8 help .