When using smart rendering with the tree grid everything works great until you go to collapse or expand a row. Once I collapse or expand it causes all subsequent rows to be all grey instead of alternate.
Which version of dhtmlxtreegrid you are using.
There was some know issues which was fixed in latest build. If problem still occurs for you - please contact us directly at support@dhtmlx.com and provide your ref. number - we will send you an updated js files.