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ArrayCollection in FLex
1 Answer(s)      4 years and 2 months ago
Posted in : Flex


please tell me about
What is the difference between ArrayCollection vs Array?
please give me ans ASAP......


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October 20, 2010 at 1:03 PM



The ArrayCollection class is a wrapper class that exposes an Array as a collection that can be accessed and manipulated using the methods and properties of the ICollectionView or IList interfaces. Operations on a ArrayCollection instance modify the data source; for example, if you use the removeItemAt() method on an ArrayCollection, you remove the item from the underlying Array.

For example:

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="" 
               minWidth="955" minHeight="600">
            private function gridinitialize():void {
                data.dataProvider = [
                    {aName:'Bikrant', DOB:'01/01/1986', 
                        City:'Delhi', State:'NewDelhi'},
                    {aName:'Brijesh', DOB:'15/07/1984', 
                        City:'Noida', State:'Uttar Pradesh'},
                    {aName:'Gaurav', DOB:'27/06/1989', 
                        City:'Mumbai', State:'Maharashtra'}                 
    <s:Panel title="DataGrid Control Example" width="428" height="409">
        <mx:DataGrid id="data" 
                     x="12" y="12" 



The Array class lets you access and manipulate arrays. Array indices are zero-based, which means that the first element in the array is [0], the second element is [1], and so on. To create an Array object, you use the new Array() constructor . Array() can also be invoked as a function. In addition, you can use the array access ([]) operator to initialize an array or access the elements of an array.

For example:

<?xml version="1.0"?>
<s:Application xmlns:fx="" 

            public var myArray:Array = ["Delhi", "Mumbai", "Chennai"]; 

    <mx:ComboBox id="myCB0" dataProvider="{myArray}"/> 

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