I new to flex, I have a class shown below:
public class Items extends Object
{
pu开发者_如何学JAVAblic function Items(){
super();
}
public var name:String;
public var count:int;
}
How do I create an ArrayCollection of type Items?
Thanks.
var item1:Items = new Items();
item1.name = "Name1";
item1.count = 5;
var item2:Items = new Items();
item2.name = "Name2";
item2.count = 7;
var items:ArrayCollection = new ArrayCollection([item1, item2]);
Another way:
var items:ArrayCollection = new ArrayCollection();
var item1:Items = new Items();
item1.name = "Name1";
item1.count = 5;
items.addItem(item1);
var item2:Items = new Items();
item2.name = "Name2";
item2.count = 7;
items.addItem(item2);
You can also create these in mxml (inside if you're using flex 4)
<s:ArrayCollection id="theCollection">
<namespace:Items name="name 1" count="5" />
<namespace:Items name="name 2" count="6" />
<namespace:Items name="name 3" count="7" />
<namespace:Items name="name 4" count="8" />
</s:ArrayCollection>
Then reference the array by its id.
Somewhere in your code:
var ac : ArrayCollection = new ArrayCollection();
var newItem : Items = new Items();
newItem.name = 'some value';
newItem.count = 1;
ac.addItem(newItem);
newItem = new Items();
newItem.name = 'some other value';
newItem.count = 2;
ac.addItem(newItem);
newItem = new Items();
newItem.name = 'Yet another value';
newItem.count = 3;
ac.addItem(newItem);
...
It may be worth nothing that ArrayCollections are not typed in the same way that a Vector may be, so there is nothing you can do to force all items in your collection to be of the Items type. [Unless you extend ArrayCollection somehow and override the addItem / addItemAt methods to throw errors if the type is wrong.
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