Hello I found an issue on item editors movement by TAB key. In mx:DataGrid, it moves quickly. However, I feel it's slow in s:DataGrid. I investigated source of classes related with s:DataGrid a little.
I found three factors. 1) s:GridItemEditor uses s:TextArea 2) grid.focusManager.getNextFocusManagerComponent takes dozens of milliseconds in editor_keyFocusChangeHandler function of s:DataGridEditor 3) it calls the validateNow method in do while loop at ensureCellIsVisible function of s:Grid We can avoid 1) by using custom light-weight editor. But we can't avoid 2) and 3). Why is 2) needed? It takes 10% of CPU resources at each TAB key movement of itemEditors because the validateNow is called. When I comment out 3), the focus moves incorrectly at rendererIsEditor column. However, there should be other ways without calling validateNow. thanks Shigeru Nakagaki
