I think Alex is right, each renderer instance should do the search by self, because of virtual layout, datagrid only keep creating/reusing the renderer insts in the visible area, so the performance will be great. -Gary
On Fri, Jul 12, 2013 at 9:57 PM, mark goldin <[email protected]> wrote: > That means I need to store selection coordinates somewhere in the > dataProvider to reapply selection every time datagrid is scrolled. Is that > correct? > > > On Fri, Jul 12, 2013 at 8:08 PM, Alex Harui <[email protected]> wrote: > > > The principle of virtual renderers is that they would do their > > highlighting as they get scrolled onto the screen, not all at once. > > > > On 7/12/13 5:11 PM, "mark goldin" <[email protected]> wrote: > > > > >No, I am not filtering dataprovider. I need to search thru all cells in > > >the > > >column and highlight all instances of search text at once. Can be > hundreds > > >of rows. > > > > > > > > >On Fri, Jul 12, 2013 at 5:40 PM, Alex Harui <[email protected]> wrote: > > > > > >> I'm not sure what are you trying to accomplish. You could filter the > > >> dataprovider so that only rows with text hits are shown in the DG. > That > > >> code would not be in the renderer. Otherwise, code in the renderer > that > > >> finds text hits in the data item it is responsible for should only be > > >> called for visible rows if you are using virtual layout. > > >> > > >> On 7/12/13 2:18 PM, "mark goldin" <[email protected]> wrote: > > >> > > >> >I need to come up with a solution for searching a text in a column. > > >>What I > > >> >have now is clearly showing that the following function in the item > > >> >renderer: > > >> >private function > > >> >onTextSearchEvent(event:ApplicantformTextSearchEvent):void > > >> >{ > > >> >var _startingPosition:int = Question.text.search(event.textToSearch); > > >> >trace(_startingPosition); > > >> >if (_startingPosition != -1) > > >> >{ > > >> >Question.selectRange(_startingPosition, _startingPosition + > > >> >event.textToSearch.length); > > >> >} > > >> >} > > >> > > > >> >does not print dataPrvider.length times as what I would want. But how > > >>can > > >> >I > > >> >show a number of text instances being found if it does not go thru > > >>every > > >> >row in the datagrid? > > >> > > >> > > > > >
