[flexcoders] Re: removeItemAt combined with getItemAt - Manipulating an arrayCollection

[michaelmatynka]

Some more info, and I am getting closer.

I am using the following function, but it returns a value of -1, out of bounds, 
regardless of 
what value I try to get the index of:

public function remItem():void{
fields.removeItemAt(fields.getItemIndex({fieldTag: small, 
value:t}));
}

Remember that the arrayCollection looks like:
private var fields:ArrayCollection = new ArrayCollection([{fieldTag: big, 
value:t}, {fieldTag: 
small, value: t}]);


Does anybody know why getItemIndex would return a value of -1?

[flexcoders] Re: removeItemAt combined with getItemAt - Manipulating an arrayCollection

[ben.clinkinbeard]

I believe its because you're passing in and looking for a new object.
Even though it has the same properties as an object in the collection
its not the same object. Try this:

var smObj:Object = {fieldTag: small, value:t};
var bigObj:Object = {fieldTag: big, value:t};

public function remItem():void
{
   fields.removeItemAt(fields.getItemIndex(smObj));
}

HTH,
Ben


--- In flexcoders@yahoogroups.com, michaelmatynka
[EMAIL PROTECTED] wrote:

 Some more info, and I am getting closer.
 
 I am using the following function, but it returns a value of -1, out
of bounds, regardless of 
 what value I try to get the index of:
 
 public function remItem():void{
   fields.removeItemAt(fields.getItemIndex({fieldTag: small,
value:t}));
   }
 
 Remember that the arrayCollection looks like:
 private var fields:ArrayCollection = new ArrayCollection([{fieldTag:
big, value:t}, {fieldTag: 
 small, value: t}]);
 
 
 Does anybody know why getItemIndex would return a value of -1?

RE: [flexcoders] Re: removeItemAt combined with getItemAt - Manipulating an arrayCollection

[Alex Harui]

Each time you use {}, you instantiate a unique new object which of
course is not findable in the collection.  You can use find() for that
though.

 



From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of michaelmatynka
Sent: Monday, June 04, 2007 4:14 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: removeItemAt combined with getItemAt -
Manipulating an arrayCollection

 

Some more info, and I am getting closer.

I am using the following function, but it returns a value of -1, out of
bounds, regardless of 
what value I try to get the index of:

public function remItem():void{
fields.removeItemAt(fields.getItemIndex({fieldTag: small,
value:t}));
}

Remember that the arrayCollection looks like:
private var fields:ArrayCollection = new ArrayCollection([{fieldTag:
big, value:t}, {fieldTag: 
small, value: t}]);

Does anybody know why getItemIndex would return a value of -1?