It doesn't work because Array methods like push(), unshift(), and splice() can't trigger databinding or any kind of notification to other objects that the array has changed. They are low-level player-level methods that don't send out events. Flex data provider APIs do send out events:
push() -> addItem() unshift() -> addItemAt() splice() -> addItemsAt() - Gordon -----Original Message----- From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Alberto Albericio Salvador Sent: Thursday, September 01, 2005 5:30 AM To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] Strange List behaviour That worked, I cant imagine why the unshift method was not doing the job. Thanks Clint. Clint Modien escribió: > From the livedocs > http://livedocs.macromedia.com/flex/15/asdocs_en/ > > || > |*addItemsAt* > <http://livedocs.macromedia.com/flex/15/asdocs_en/mx/controls/listclasses/DataProvider.html#addItemsAt>( > > index: Number, newItems: Array) : Void > |Adds several items to the array. > > > so your code might look like this to add data to the beginning of the > array... > > var newItemsArray = [ newMsgFromPushData]; > listComponentsID.dataProvider.addItemsAt(0, newItemsArray ); > > On 9/1/05, *Alberto Albericio Salvador* <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Hi all, > > Im using a List component to display the messages incoming from a "msg > push server". The dataProvider of the List is bound to "some array > variable". If I use the method *addItem* to inject data into the > array; > as a result of this action, the List grows downwards, leaving the > first > element always visible and loosing the last added msgs lost (gotta > use > the scrollbar to find them at the end). Well, I want the List to grow > upwards so that the last incoming msg gets displayed the first. I use > the *unshift* method but the array does not get modified. So, what is > happening here? > > I know this is not a natural Flex question but I cant find why it > is not > working the way I want. > > Nuke this post if you feel this is not the right place for it and > sorry. > > -- > Alberto Albericio Salvador > Aura S.A. Seguros > Departamento Informática > > > > ------------------------ Yahoo! Groups Sponsor > > -- > Flexcoders Mailing List > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > Search Archives: > http://www.mail-archive.com/flexcoders%40yahoogroups.com > Yahoo! Groups Links > > <http://groups.yahoo.com/group/flexcoders/> > > <mailto:[EMAIL PROTECTED]> > > > > > > > > -- > Flexcoders Mailing List > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com > > > ------------------------------------------------------------------------ > YAHOO! GROUPS LINKS > > * Visit your group "flexcoders > <http://groups.yahoo.com/group/flexcoders>" on the web. > > * To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service <http://docs.yahoo.com/info/terms/>. > > > ------------------------------------------------------------------------ > -- Alberto Albericio Salvador Aura S.A. Seguros Departamento Informática -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links ------------------------ Yahoo! Groups Sponsor --------------------~--> Fair play? Video games influencing politics. Click and talk back! http://us.click.yahoo.com/T8sf5C/tzNLAA/TtwFAA/nhFolB/TM --------------------------------------------------------------------~-> -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
