[FLEX-13555] Label of a FormItem not showing

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: Adobe Flex SDK 3.0 (Release)
• Component/s: mx: Label
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Browser: Safari; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 19/Dec/07 13:32
• Updated: 04/Jun/09 19:35
• Resolved: 11/Feb/09 13:46

Description

Steps to reproduce:
Run the following code:

<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
xmlns:local="*">

<local:ContentForm id="cf"
width="100%" height="100%"/>

<mx:Button label="add" click="cf.paint()"/>
</mx:Application>

Where localContentForm is:

package
{
import mx.containers.Form;
import mx.containers.FormItem;
import mx.controls.TextInput;
import mx.core.UIComponent;

public class ContentForm extends Form
{
private var pendingChildren:Array;
private var contentChanged:Boolean;

public function paint ():void

{ contentChanged = true; invalidateProperties(); invalidateDisplayList(); }

override protected function commitProperties():void
{
super.commitProperties();

if (contentChanged)
{
pendingChildren = new Array ();

for (var i:int = 0; i <= 3; i++)

{ var formItem:FormItem = new FormItem (); formItem.label = "label " + i.toString(); var ti:TextInput = new TextInput (); formItem.addChild(ti); pendingChildren.push (formItem); }

contentChanged = false;
}
}

override protected function updateDisplayList (unscaledWidth:Number, unscaledHeight:Number):void
{
super.updateDisplayList (unscaledWidth, unscaledHeight);

if (pendingChildren)
{
var len:int = pendingChildren.length;
var child:UIComponent;

for (var i:int = 0; i < len; i++)

{ child = pendingChildren[i] as UIComponent; addChild (child); }

pendingChildren = null;
}
}
}
}

Actual Results:
When clicking the add button some few formItems with a TextInput control should appear in the form. The problem is that the labels are not rendered. Instead only the textInputs are drawn.

Expected Results:
We should see the labels.

Workaround (if any):
Manually asigning a labelWidth style to the formItem shows the labels: formItem.setStyle("labelWidth",100);