How about this:
var smallCollection:ArrayCollection = new ArrayCollection(bigCollection.source.splice(0, 10)); Or somethinglike: var smallCollection:ArrayCollection = new ArrayCollection(); ... smallCollection.source = bigCollection.source.splice(0, 10); trace(smallCollection.length); // 10 Peter ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Nayan Savla Sent: Monday, March 03, 2008 4:11 PM To: [email protected] Subject: Re: [flexcoders] extracting items from array collection getItemAt doesn't work the url parameter for the httpService is a XML file so yes, var bigCollection:ArrayCollection = data.result.myBigList as ArrayCollection; //I am reading an xml file. this is true. I haven't set the resultformat of my httpservice, its using the default format. Also in the debugger i see that the variable bigCollection stores the xml file as a object list and as i mentioned i can easily extract the array from this using, var smallCollection:Array = bigCollection.toArray().slice(0,10); //this works just fine. the data in this array is as expected, What i don't understand is why i can't convert it into an ArrayCollection. Nayan On Mon, Mar 3, 2008 at 3:39 PM, Tracy Spratt <[EMAIL PROTECTED] <mailto:tspratt%40lariatinc.com> > wrote: > > > > > > > > > > Have you verified this line below? It raises doubts: > > > var bigCollection:ArrayCollection = data.result.myBigList as > ArrayCollection; //I am reading an xml file. > > > > First, XML will only yield an XMLList and you cannot cast an XMLList to an > ArrayCollection. > > > > I suspect you may not have xml as you think, but instead a nested object > structure. It depends on how you are getting your data. If that is so, it > is not a good way to do it. Have you set your resultFormat="e4x"? > > > > If you are getting XML from the server, why not use XMLListCollection? > > > > If you do not want to use that, you should convert your XMLList into an > ArrayCollection of strongly typed data objects. This is a manual process of > looping over the XMLList and building each object and then adding it to the > AC. > > > > Tracy > > > > ________________________________ > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] On > Behalf Of Nayan Savla > Sent: Monday, March 03, 2008 4:00 PM > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > Subject: [flexcoders] extracting items from array collection getItemAt > doesn't work > > > > > > > > Hi All, > > I am trying to get data from an ArrayCollection and i tried various > things without any luck. > > this is the code, > > var bigCollection:ArrayCollection = data.result.myBigList as > ArrayCollection; //I am reading an xml file. > > 1) var smallCollection:ArrayCollection = > bigCollection.getItemAt(0,10); //i believe this is the correct method > but doesn't work > > 2) var smallCollection:ArrayCollection = > bigCollection.toArray().slice(0,10) as ArrayCollection; //this returns > null > > 3) var smallCollection:Array = bigCollection.toArray().slice(0,10); > //this works just fine. > > any ideas why i can't just use the second statement, please ignore my > knowledge of flex if i am missing something fundamental. > > thanks > Nayan > >
