Hi, No confusion here ;) except maybe for my fuzzy explanation ;). I did: interface IWorldPart class WorldPart implements IWorldPart class SomeWorldPartSubclass extends WorldPart
then either var myPart:WorldPart = new SomeWorldPartSubclass(); or var myPart:IWorldPart = new SomeWorldPartSubclass(); As you described, however collection.addItem (myPart) only works in the first case and not in the second. Probably becoz flash thinks IWorldPart is not an object. I changed it to : var myPart:Object = new SomeWorldPartSubclass(); And it works fine (just as var myPart:WorldPart = new SomeWorldPartSubclass();) by the way. Thanks for your comments, H -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ian Thomas Sent: Wednesday, February 01, 2006 12:36 PM To: Flashcoders mailing list Subject: Re: [Flashcoders] interfaces and objects Um... not quite sure what you're up to here - but it sounds like you're getting a bit confused between IWorldPart and WorldPart. What you need is: interface IWorldPart class SomeWorldPartSubclass implements IWorldPart then var myPart:IWorldPart = new SomeWorldPartSubclass(); should be fine. _OR_ interface WorldPart class SomeWorldPartSubclass implements WorldPart then var myPart:WorldPart = new SomeWorldPartSubclass(); Not quite sure why your description mentions both IWorldPart and WorldPart - unless WorldPart implements IWorldPart..? In which case you're looking for: interface IWorldPart class WorldPart implements IWorldPart class SomeWorldPartSubclass extends WorldPart then either var myPart:WorldPart = new SomeWorldPartSubclass(); or var myPart:IWorldPart = new SomeWorldPartSubclass(); should both work... HTH, Ian On 2/1/06, j.c.wichman <[EMAIL PROTECTED]> wrote: > > Hi, > i'm using a collection, which requires items of type Object to be added. > > I've declared an interface which gives me something like: > - interface IWorldPart > - a class implementing WorldPart > > now somewhere else i do: > var myPart:IWorldPart = new SomeWorldPartSubclass(); > myCollection.addItem (myPart); > > The last statement gives a type error, if i replace the first with var > myPart:WorldPart = new ... all goes well. > _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
