TileList is a data-driven control. And to be accurate, it does not have a component in it, but rather has an itemRenderer property that takes a component class value. This is important, because itemRenderers have rules entirely their own and are much more complicated than, say, a component in a Tile container.
With data-driven components, you almost never access the individual item controls or contents, like the stepper. Instead, the item renderer should update a property in the associated dataProvider item. You then use the dataProvider to get the value from the outside. The second issue you note is related. Itemrenderers are recycled and only the visible ones, plus a few for buffering, even exist. When you scroll, or when the underlying data changes, all the visible renderers get a new dataProvider item and refresh themselves, using the data in the item. If you have a control, like a stepper, that does not have its value set from the dataProvider item, then you will get seemingly random values in that control. Custom item renderers are tricky to deal with. Just note the huge number of posts asking about them. There is no shortcut to learning about them. Thee are many examples, at all levels available. Google is probably the best place to start, or go straight to the Flex docs of the Flex cookbook, etc. Tracy ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Shaun McCran Sent: Friday, October 05, 2007 5:26 AM To: [email protected] Subject: RE: [flexcoders] Referencing elements in a component Any thoughts on this? ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of smccran Sent: 05 October 2007 08:25 To: [email protected] Subject: [flexcoders] Referencing elements in a component Hi, I have TileList (Shopping basket), with a component in it. The tilelist has a numeric stepper displayed in the component. There is a change event on the stepper, that calls a function that increases or decreases the number of that item in the basket. I have two problems, the first is that there is also a button to 'remove item from basket' in the function for this I cannot get it to reference the numeric stepper (ns.value = ns.value -1) how do you reference items inside a component from external (component to external is 'outerDocument'). I've seen the 'target.xxx', is that anything to do with it. The second is that I have many items in the TileList, sometimes if I active the second numeric stepper it affects the first item. How do you reference a specific index, or row of the tilelist? Thanks Shaun The contents and any attachments of this electronic mail message are confidential and intended only for the named addressee. It may contain information covered by legal, professional or other privilege. You are notified that any disclosure, copying and distribution is prohibited. If you received this email in error, please accept our apologies, and we would appreciate that you return it to us. Europa Group Limited is authorised and regulated by the Financial Services Authority.Registered Office: 29 High Street, Thornbury, BS35 2FD. Registered in Wales Reg No 3279177
