Hello All, I want to be Flex Certified. from where i can get the Demo Test Papers.
Thanks Ashish On Fri, Nov 21, 2008 at 10:51 PM, bjorn <[EMAIL PROTECTED]> wrote: > I experienced some problems with ArrayCollection's removeItemAt(). It > seemed to work... randomly. > > Tucked away in the documentation i found this little gem: > "Note: If you use the ICollectionView interface to sort or filter a > collection, do not use the IList interface to manipulate the data, because > the results are indeterminate." > > My problem, of course, was that I had a sort on the ac, and that I used > IList's removeItemAt(). > > I don't understand the rationale behind this, maybe someone can explain to > me why it's difficult to implement removeItemAt() on a > sorted ArrayCollection ... I mean, I _am_ working with sorted data here, so > when I say index 11 I mean index 11 on the sorted data. That's the data I > see, that's the data I'm using, I don't need to know anything about the > underlying Array and the element's _real index_ ....the ArrayCollection > knows which element this refers to in the underlying Array, so there > shouldn't be a problem ...? > > Anyway, given the restraints we're working with here - what is the best way > to approach this? I need to be able to remove items from a sorted > ArrayCollection - any best practices? > > Bjørn > -- > ========================== > http://www.juicability.com - flex blog > http://www.expressionengine.no - ExpressionEngine; the world's most > flexible cms > > >
