Re: [flexcoders] Force binding for Arrays

Thu, 03 Nov 2005 17:28:24 -0800

ok...I do need to reset the array at times, and also to change an item in the index.
Is there any perf hit by reassiging the variable to itself ?
 
- superabe

 
On 11/3/05, JesterXL <[EMAIL PROTECTED]> wrote:
You don't need to do that; Array's in Flex already have the DataProvider API (in 1.5), and thus generate events.

So, if you are changing an index, ensure you do:
 
my_array.addItem(someItem)
 
Instead of:
 
my_array.push(someItem)
 
If you do the addItem, it'll trigger the event, and update whatever controls is bound to the array.  Only reset the array entirely if the whole array changes.
 
----- Original Message -----
Sent: Thursday, November 03, 2005 11:11 AM
Subject: [flexcoders] Force binding for Arrays

 
I realize that we can force binding for Arrays to occur, when modifying one of their indexes by doing something like
 
Model.myList = Model.myList
 
Is there any performance reasons or other reasons why this would be a bad idea to use?
 
TIA
- superabe


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