You need to import the Button so import mx.controls.Button
But I think your main issue is that you can't create a Sprite component and put mx components inside of it. You need to use UIComponent as your base instead of Sprite. I believe you can go lower down the inheritance chain to FlexSprite (don't quote me on the name I don't have my Flex posters in front of me). But even if you use FlexSprite you have to implement a lot of Classes and write a lot of functions (override possibly) to make FlexSprite work so its just best to go with UIComponent. J --- In [email protected], "dennis" <den...@...> wrote: > > Hello. I am new to action script and I am (pretty) confused. so any help is > valuable!!! > > > > --- issue 1 > ---------------------------------------------------------------------------- > - > > I have the follow code. and I get blank page. nothing is appeared on the > stage at all!!! For god's sake, what is wrong? > > > > package > > { > > import flash.display.Sprite; > > import mx.core.ButtonAsset; > > public class ASProject2 extends Sprite > > { > > public function ASProject2() > > { > > var mb: ButtonAsset = new ButtonAsset(); > > mb.x=100; mb.y=100; mb.width=200; > > addChild(mb); > > } > > } > > } > > > > --- issue 2 > ---------------------------------------------------------------------------- > - > > Which button is the more simple button to use? > > I found the spark components button is the component that Flash Builder uses > if you write in mxml language. So I add the folder to my project's libraries > paths, in precise I added as SWC folder the follow folder: > > c:\Program Files\Adobe\Flash Builder > Beta\sdks\4.0.0\frameworks\projects\flex4\src\spark\components\ > > > > Here is the (very simple) code (with compiler's errors): > > > > package > > { > > import flash.display.Sprite; > > import spark.components.Button; // <- compile time error: 1172: > Definition spark.components:Button could not be found. > > public class ASProjectInFB4 extends Sprite > > { > > public function ASProjectInFB4() > > { > > var ab : Button = new Button(); // <- compile time error: 1046: Type > was not found or was not a compile-time constant: Button. > > ab.x=10; > > ab.y=10; > > ab.width=200; > > ab.height=100; > > ab.enabled=true; > > addChild(ab); > > } > > } > > } > > > > The problem (as you see) are the two compiler errors. Now. if get the cursor > on "Button" text in my code and I press the F3 the Flash Builder transfers > me to the declaration of Button class in the proper Button.as file! So I > suppose that my definition in my preceding code is correct. If I remove the > the SWC folder from the libraries of my project, the F3 buttons doesn't > transfer me anywhere, so the SWC folder definition is working too. > > > > What is wrong? > > > > Best regards > > Dennis >
