ActionScript® 3.0 Reference for the Adobe® Flash® Platform
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mx.containers.utilityClasses 

ConstraintRow  - AS3 Flex

Packagemx.containers.utilityClasses
Classpublic class ConstraintRow
InheritanceConstraintRow Inheritance EventDispatcher Inheritance Object
Implements IMXMLObject

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

ConstraintRow class partitions an absolutely positioned container in the horizontal plane. ConstraintRow instances have 3 sizing options: fixed, percentage, and content. These options dictate the position of the constraint row, the amount of space the constraint row takes in the container, and how the constraint row deals with a change in the size of the container.



Public Properties
 PropertyDefined By
  baseline : Object
Number that specifies the baseline of the ConstraintRow instance, in pixels, either relative to the top edge of the row or to the max ascent of the elements contained in this row.
ConstraintRow
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
  explicitHeight : Number
Number that specifies the explicit height of the ConstraintRow instance, in pixels, in the ConstraintRow instance's coordinates.
ConstraintRow
  height : Number
Number that specifies the height of the ConstraintRow instance, in pixels, in the parent's coordinates.
ConstraintRow
  id : String
ID of the ConstraintRow instance.
ConstraintRow
  maxHeight : Number
Number that specifies the maximum height of the ConstraintRow instance, in pixels, in the ConstraintRow instance's coordinates.
ConstraintRow
  minHeight : Number
Number that specifies the minimum height of the ConstraintRow instance, in pixels, in the ConstraintRow instance's coordinates.
ConstraintRow
  percentHeight : Number
Number that specifies the height of a component as a percentage of its parent's size.
ConstraintRow
Public Methods
 MethodDefined By
  
Constructor.
ConstraintRow
 Inherited
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.
EventDispatcher
 Inherited
Dispatches an event into the event flow.
EventDispatcher
 Inherited
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
EventDispatcher
 Inherited
Indicates whether an object has a specified property defined.
Object
  
Called automatically by the MXML compiler when the ConstraintRow instance is created using an MXML tag.
ConstraintRow
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
EventDispatcher
  
Sizes the ConstraintRow
ConstraintRow
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
Returns the string representation of the specified object.
Object
 Inherited
Returns the primitive value of the specified object.
Object
 Inherited
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.
EventDispatcher
Events
 Event Summary Defined By
 Inherited[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.EventDispatcher
 Inherited[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.EventDispatcher
Property Detail

baseline

property
baseline:Object

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Number that specifies the baseline of the ConstraintRow instance, in pixels, either relative to the top edge of the row or to the max ascent of the elements contained in this row.

The default value is "maxAscent:0".

This property can be used as the source for data binding. When this property is modified, it dispatches the baselineChanged event.



Implementation
    public function get baseline():Object
    public function set baseline(value:Object):void

explicitHeight

property 
explicitHeight:Number

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Number that specifies the explicit height of the ConstraintRow instance, in pixels, in the ConstraintRow instance's coordinates.

This property can be used as the source for data binding. When this property is modified, it dispatches the explicitHeightChanged event.



Implementation
    public function get explicitHeight():Number
    public function set explicitHeight(value:Number):void

height

property 
height:Number

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Number that specifies the height of the ConstraintRow instance, in pixels, in the parent's coordinates.

This property can be used as the source for data binding. When this property is modified, it dispatches the heightChanged event.



Implementation
    public function get height():Number
    public function set height(value:Number):void

id

property 
id:String

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

ID of the ConstraintRow instance. This value becomes the instance name of the constraint row and should not contain white space or special characters.



Implementation
    public function get id():String
    public function set id(value:String):void

maxHeight

property 
maxHeight:Number

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Number that specifies the maximum height of the ConstraintRow instance, in pixels, in the ConstraintRow instance's coordinates.

This property can be used as the source for data binding. When this property is modified, it dispatches the maxHeightChanged event.



Implementation
    public function get maxHeight():Number
    public function set maxHeight(value:Number):void

minHeight

property 
minHeight:Number

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Number that specifies the minimum height of the ConstraintRow instance, in pixels, in the ConstraintRow instance's coordinates.

This property can be used as the source for data binding. When this property is modified, it dispatches the minHeightChanged event.



Implementation
    public function get minHeight():Number
    public function set minHeight(value:Number):void

percentHeight

property 
percentHeight:Number

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Number that specifies the height of a component as a percentage of its parent's size. Allowed values are 0-100. The default value is NaN. Setting the width property resets this property to NaN.

This property can be used as the source for data binding. When this property is modified, it dispatches the percentHeightChanged event.



Implementation
    public function get percentHeight():Number
    public function set percentHeight(value:Number):void
Constructor Detail

ConstraintRow

()Constructor
public function ConstraintRow()

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Constructor.

Method Detail

initialized

()method
public function initialized(document:Object, id:String):void

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Called automatically by the MXML compiler when the ConstraintRow instance is created using an MXML tag. If you create the constraint row through ActionScript, you must call this method passing in the MXML document and null for the id.

Parameters

document:Object — The MXML document containing this ConstraintRow.
 
id:String — Ignored.

setActualHeight

()method 
public function setActualHeight(h:Number):void

Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Sizes the ConstraintRow

Parameters

h:Number — Height of constaint row computed during parent container processing.