What is connectorModel? Does it implement IEventDispatcher? Does it throw
PropertyChangeEvent or have any Bindable properties? Some of these
questions are a shot in the dark.
- Dan Freiman
On 10/24/07, Webdevotion <[EMAIL PROTECTED]> wrote:
>
>
> If found that I do not get the error when I leave this filterfunction out:
>
> public function set cables ( k : ArrayCollection ) : void
>
> {
> _cables = new ArrayCollection( k.toArray() );
> //_cables.filterFunction = filterCables; // generates error
> // _cables.refresh();
> }
>
> private function filterCables( item : ConnectorModel ) : Boolean
> {
> return item.value > 0;
> }
>
>
>
>
> On 10/24/07, Alex Harui <[EMAIL PROTECTED] > wrote:
> > >
> > > Are you doing a reset or remove? Are you removing rows that are
> > > locked?
> > >
> > >
> > > ------------------------------
> > >
> > > * From:* [EMAIL PROTECTED] ups.com [mailto:[EMAIL PROTECTED]
> > > * On Behalf Of *Webdevotion
> > > *Sent:* Wednesday, October 24, 2007 7:43 AM
> > > * To:* [EMAIL PROTECTED] ups.com
> > > *Subject:* Re: [Flexcoders] Error from
> > > mx\controls\listClasses\ListBase.as
> > >
> > >
> > >
> > > That's a good question ... The application is quite big, I'll have to
> > > look into that.
> > > But yes, it occurs when I go back some screens and reset the
> > > dataprovider.
> > >
> > > Thanks for that fresh insight.
> > >
> > >
> > > On 10/24/07, *Daniel Freiman* < [EMAIL PROTECTED]> wrote:
> > >
> > > This appears to be happening when you remove an item from the
> > > dataProvider. Is there anything unique about the dataProvider or how
> > > you're
> > > removing the item from the dataProvider?
> > >
> > > - Dan Freiman
> > >
> > > On 10/24/07, * Webdevotion* < [EMAIL PROTECTED] > wrote:
> > >
> > > Hey everyone,
> > >
> > > I've been hunting a bug down for a while now in a Flex project:
> > >
> > > *This is the generated error: *
> > > TypeError: Error #1009: Cannot access a property or method of a null
> > > object reference.
> > > *at mx.controls.listClasses::ListBase/collectionChangeHandler()
> > > [C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\listClasses\ListBase.as:6496]
> > > *
> > > at
> > > mx.controls.listClasses::TileBase/collectionChangeHandler()[C:\dev\flex_201_gmc\sdk\frameworks\mx\controls\listClasses\TileBase.as:1981]
> > > at flash.events::EventDispatcher/dispatchEventFunction ()
> > > at flash.events::EventDispatcher/dispatchEvent()
> > > at
> > > mx.collections::ListCollectionView/dispatchEvent()[C:\dev\flex_201_gmc\sdk\frameworks\mx\collections\ListCollectionView.as:833
> > > ]
> > > at
> > > mx.collections::ListCollectionView/moveItemInView()[C:\dev\flex_201_gmc\sdk\frameworks\mx\collections\ListCollectionView.as:1316
> > > ]
> > > at
> > > mx.collections::ListCollectionView/handlePropertyChangeEvents()[C:\dev\flex_201_gmc\sdk\frameworks\mx\collections\ListCollectionView.as:1124]
> > >
> > >
> > >
> > > at
> > > mx.collections::ListCollectionView/listChangeHandler()[C:\dev\flex_201_gmc\sdk\frameworks\mx\collections\ListCollectionView.as:1042
> > > ]
> > > at flash.events::EventDispatcher/dispatchEventFunction ()
> > > at flash.events::EventDispatcher/dispatchEvent ()
> > > at
> > > mx.collections::ArrayList/internalDispatchEvent()[C:\dev\flex_201_gmc\sdk\frameworks\mx\collections\ArrayList.as:518]
> > >
> > > at
> > > mx.collections::ArrayList/itemUpdateHandler()[C:\dev\flex_201_gmc\sdk\frameworks\mx\collections\ArrayList.as:544]
> > > at flash.events::EventDispatcher/dispatchEventFunction()
> > > at flash.events::EventDispatcher/dispatchEvent()
> > >
> > >
> > > *The rule that throws the error *
> > > // RULE 6493 in ListBase.as
> > > //( found at : C:\Program Files\Adobe\Flex Builder 2 Plug-in\Flex SDK
> > > 2\frameworks\source\mx\controls\listClasses )
> > > // make sure we've generated rows for the actual data
> > > // at startup time we might just have blank rows
> > > if (listItems.length && listItems[lockedRowCount].length )
> > >
> > > *Screenshot*
> > > For those interested, this is the dump of listItems:
> > > screenshot<http://content.screencast.com/media/d25bbc5a-9b36-42ee-8393-b2e2f48929f8_8373bf5e-323c-46b9-94a3-68ac1e9fbb8f_static_0_0_image.png>
> > >
> > >
> > > Any thought are greatly appreciated!
> > > Bram
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
>
