I recently upgraded from telerik 2008 to 2009 version. Since that, (I am not sure if this is THE cause), I have trouble with a treeview in my application, when it is ajax updated. This trouble only occurs in Chrome and Safari.
My treeview is in a usercontrol on a radpageview, inside a radmultipaged, controlled by a radtabstrip.
I enabled the RenderSelectedPageOnly=True property because my tabs may contain a lot of html and I don't want to send everything to the browser.
With that property set to true, my treeview is only displaying correctly on the first display. If I do any ajax action on my page that affects the treeview (treeview click or tab change), I lose my correct display of the treeview, I only see the "ul/li" visual, I lose every checkbox images. I only see a bullet list.
I have ajax settings activated with radajaxmanagerproxy (no ajaxpanel) for the tabstrip and the treeview, with autopostback on the tabstrip to load the selected radpageview on click.
That was not a trouble with the 2008 Q4 version of radcontrols, and it is not a trouble with Firefox3 and IE8. This only occurs in Chrome(1/2/3) and Safari (4, certainly 3 also), and with the 2009 Q1 version of radcontrols.