In order for a filter function to eliminate unwanted items everything in your data provider will have to pass through that function... which probably won¹t perform well as the number of records increase. If you aren¹t dealing with large amounts of data it probably isn¹t a concern (just a thought).
On the flip-side you could use a paged ArrayCollection. There is a good example on Adobe Developer Connection written by Peter Molgaard if you¹re interested. http://www.adobe.com/cfusion/communityengine/index.cfm?event=showdetails&pro ductId=2&postId=11083 Cheers, Rick Winscot On 5/29/09 10:59 AM, "fumeng5" <[email protected]> wrote: > > > > > > Hi, > > I'm looking for help writing an algorithm in a filter function I am using. > Here's the situation: Based on a page number and a number of records per page, > I want to return all indexes that fall within a certain range. There are 4 > records per page. > > For example; > > - page 1 will return indexes 0-4 > - page 2 will return indexes 5 - 9 > - page 3 will return indexes 10 - 14 > ....etc, etc... > > So, here are the vars: > > var index:int = myCollection.getItemIndex( item ); > var recordsPerPage:int = 4; > > It's embarrassing, but this is what I have so far.... > > if( page <= index < (page * page + recordsPerPage) ) > return true > > Can anyone offer some helpful insight, please? > > Thank you for any help. > > > > > > >>
