[flexcoders] triggering itemsChangeEffect when using filters on an ArrayCollection's

[fatmanchan2009]

Hey Guys

So what im basically doing is creating a List Component of players scores. The 
dataprovider is type ArrayCollection, and i have applied a sort filter on the 
collection so it sorts by players score, but when the filter is applied and the 
order of the collection changes, the itemsChangeEffect doesnt get triggered, so 
no effects occur. 

So thats the main problem, does anyone have a clue on how to go around this, or 
a fix for it?  

Cheers

Regards

SCHAN (fatmanchan2009)

[flexcoders] XMLFiltering by attributes and values

[fatmanchan2009]

Hello

Can anyone figure out this problem im currently having, and explain the reasons 
and cause of this proplem.

I have an XML file of track data with a bunch of attributes

track
item uniqueTrackId=100 albumId=12 trackId=1 genreId=13 
artistId=6584
...
/track

i use this code to execute the filtering on the data, the name is artistId and 
the value is 6584, so the data should come back with all the artists with 
artistId 6584. 

var filterData : XMLList = _trackData.item;

for each (var prop : Object in _propertiesList)
{
filterData = filterData.(attribute(prop.name) == prop.value);
}

but i keep getting this exception, when its applyin the filter, so within the 
for loop 

TypeError: Error #1006: value is not a function.

So anyone that can figure what the problem is, would be a big help Thank You 


Stephen Chan

   

[flexcoders] Re: XMLFiltering by attributes and values

[fatmanchan2009]

Ok, thanks, but dont think i explained my self very well

Basically, i have a properties list which stores a object with a name and a 
value, which are both strings. name is the attribute name, so in ur example it 
will be 'id' and the value will be '1'. so knowing that information i should be 
able to filter the xml using them values.

var itemList : XMLList = items
item id='1' quantity='2' type='fruit'
item id='2' quantity='5' type='veg'
item id='3' quantity='6' type='veg'
item id='4' quantity='7' type='fruit'
 /items;

var propertyList : ArrayCollection = new ArrayCollection();
propertyList.addItem({name:'type' , value:'fruit'});

var filterList : XMLList = itemList.item;

for each(var property : Object in propertyList)
{
 filterList = filterList.(attribute(property.name) == property.value);
}

//Output of filterList
item id='1' quantity='2' type='fruit'
item id='4' quantity='7' type='fruit'

So thats the basic idea but always get that error, looking in the API it 
suggests it is possible to filter like that. Well hope this gives a better idea 
of what the problem is. Thank You

Stephen Chan

--- In flexcoders@yahoogroups.com, Preetham Hegde preethamheg...@... wrote:

 what are name and value to _propertiesList ? Is it elements or attributes?
 If it is element then accessing is correct, there is some other problem.
 If it is attribute then should access like this
 pr...@name or pr...@value
 
 To understand difference between element and attribute here is a example
 
 
 *public function callFunc():void{
 
 var total2:Number = 0;
 for each (var prop:XML in myXML.item)
 {
 total2 += pr...@quantity * prop.price;
 }
 
 Alert.show(total2.toString());
 
 
 }
 
 
 public var myXML:XML =
 order
 item id='1' quantity='2'
 menuNameburger/menuName
 price3.95/price
 /item
 item id='2' quantity='2'
 menuNamefries/menuName
 price1.45/price
 /item
 /order;*
 
 
 
 On Mon, Aug 17, 2009 at 4:57 PM, fatmanchan2009 fatmanchan2...@...wrote:
 
 
 
  Hello
 
  Can anyone figure out this problem im currently having, and explain the
  reasons and cause of this proplem.
 
  I have an XML file of track data with a bunch of attributes
 
  track
  item uniqueTrackId=100 albumId=12 trackId=1 genreId=13
  artistId=6584
  ...
  /track
 
  i use this code to execute the filtering on the data, the name is artistId
  and the value is 6584, so the data should come back with all the artists
  with artistId 6584.
 
  var filterData : XMLList = _trackData.item;
 
  for each (var prop : Object in _propertiesList)
  {
  filterData = filterData.(attribute(prop.name) == prop.value);
  }
 
  but i keep getting this exception, when its applyin the filter, so within
  the for loop
 
  TypeError: Error #1006: value is not a function.
 
  So anyone that can figure what the problem is, would be a big help Thank
  You
 
  Stephen Chan
 
   
 
 
 
 
 -- 
 Regards,
 Preetham Hegde
 
 
 ___
 If you only have a hammer, you tend to see every problem as a nail.