Home/ Questions/Q 776665
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-14T19:29:06+00:00

when I check the width of my objects I always get 0. Here is

  • 0

when I check the width of my objects I always get 0. Here is an example:

newTag = new LinkButton();
newTag.label = dataManager.tagViewTimelineModel.tags.getItemAt(i).name;
newTag.setStyle("color","#FFA500");
newTag.setStyle("rollOverColor","#FFA500");
newTag.setStyle("selectionColor","#CCCCCC");
newTag.toolTip ="Unselect tag";
newTag.setStyle("fontSize",16); 

Alert.show(newTag.width); //This is 0

I guess because width is a property I can set, but it is not automatically computed by Flex. How can I know how big are my objects (as conseguence of the included text ?)

thanks

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    The sizing and positioning of a component is always set by that component’s parent. In your code you have not yet added the LinkButton to a container, and therefore it will not yet have a size. Width and Height will always be zero in such a case.

    Once you add it as a child to a parent, it will start through the component lifecycle. It will call mesaure() will define it’s measuredHeight and measuredWidth values. It is up to the parent to decide whether to use the measuredHeight or measuredwidth or not. This is usually done in updateDisplayList().

    If you’re using a default Flex container, it probably already has methods to size it’s children; and you only have to worry about adding it as a child.

    However, keep in mind the lifecycle has to run before it will have width or height. You can’t addChild and immediately expect non-zero values.

    • 0