Hi all,

i am developing a page that uses two tabs and a hierarchical grid (2 levels). We have performance issues in IE8 when displaying data (about 4000 rows at first level, we cannot use pagination). The page  rendering is VERY slow and  when i move mouse over any grid cell,  IE8 freezes for a while, this is caused by the execution of javascript functions igtbl_globalMouseMove, and cell mouse move.

Is there a way to speed up the page rendering and turn off this client side event handler. Even if i set control.DisplayLayout.ReadOnly = UltraWebGrid.ReadOnly.LevelOne, this seem to have no effect on these events.

On firefox the page loading is still very slow but the mouse move over the cell has no freeze problem.

I followed many threads trying to find the right options to improve performance with no luck.

we are using

.DisplayLayout.LoadOnDemand = UltraWebGrid.LoadOnDemand.Xml

 DisplayLayout .AllowColSizingDefault = UltraWebGrid.AllowSizing.Fixed
 DisplayLayout.AllowColumnMovingDefault = UltraWebGrid.AllowColumnMoving.None
 DisplayLayout.AllowSortingDefault = UltraWebGrid.AllowSorting.No
 DisplayLayout .AllowUpdateDefault = UltraWebGrid.AllowUpdate.No

Thanks in advance

best regards