arrow flex是什么HGroup - AS3 Flex

Returns the current number of elements in view.

預設值為 -1。

此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 propertyChange 事件。

    public function get columnCount():int

If the variableColumnWidth property is false,
then this property specifies the actual width of each layout element, in pixels.

If the variableColumnWidth property is true,
the default, then this property has no effect.

The default value of this property is the preferred width
of the item specified by the typicalLayoutElement property.

    public function get columnWidth():Number
    public function set columnWidth(value:Number):void

The index of the first column that is part of the layout and within
the layout target’s scroll rectangle, or -1 if nothing has been displayed yet.

Note that the column may only be partially in view.

此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 indexInViewChanged 事件。

    public function get firstIndexInView():int

The horizontal space between layout elements, in pixels.

Note that the gap is only applied between layout elements, so if there’s
just one element, the gap has no effect on the layout.

預設值為 6。

    public function get gap():int
    public function set gap(value:int):void

The horizontal alignment of the content relative to the container’s width.
If the value is "left", "right", or "center" then the
layout element is aligned relative to the container’s contentWidth property.

This property has no effect when clipAndEnableScrolling is true
and the contentWidth is greater than the container’s width.

This property does not affect the layout’s measured size.

預設值為 "left"。

    public function get horizontalAlign():String
    public function set horizontalAlign(value:String):void

The index of the last column that is part of the layout and within
the layout target’s scroll rectangle, or -1 if nothing has been displayed yet.

Note that the column may only be partially in view.

此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 indexInViewChanged 事件。

    public function get lastIndexInView():int

The minimum number of pixels between the container’s bottom edge and
the bottom of all the container’s layout elements.

預設值為 0。

    public function get paddingBottom():Number
    public function set paddingBottom(value:Number):void

Number of pixels between the container’s left edge
and the left edge of the first layout element.

預設值為 0。

    public function get paddingLeft():Number
    public function set paddingLeft(value:Number):void

Number of pixels between the container’s right edge
and the right edge of the last layout element.

預設值為 0。

    public function get paddingRight():Number
    public function set paddingRight(value:Number):void

The minimum number of pixels between the container’s top edge and
the top of all the container’s layout elements.

預設值為 0。

    public function get paddingTop():Number
    public function set paddingTop(value:Number):void

The measured size of this layout is wide enough to display
the first requestedColumnCount layout elements.
If requestedColumnCount is -1, then the measured
size will be big enough for all of the layout elements.

If the actual size of the container using this layout has been explicitly set,
then this property has no effect.

預設值為 -1。

    public function get requestedColumnCount():int
    public function set requestedColumnCount(value:int):void

The measured width of this layout is large enough to display
at most requestedMaxColumnCount layout elements.

If requestedColumnCount is set, then
this property has no effect.

If the actual size of the container using this layout has been explicitly set,
then this property has no effect.

預設值為 -1。

    public function get requestedMaxColumnCount():int
    public function set requestedMaxColumnCount(value:int):void

The measured width of this layout is large enough to display
at least requestedMinColumnCount layout elements.

If requestedColumnCount is set, then
this property has no effect.

If the actual size of the container using this layout has been explicitly set,
then this property has no effect.

預設值為 -1。

    public function get requestedMinColumnCount():int
    public function set requestedMinColumnCount(value:int):void

If true, specifies that layout elements are to be allocated their
preferred width.

Setting this property to false specifies fixed width columns.
The actual width of each layout element is
the value of the columnWidth property, and the layout ignores
a layout elements’ percentWidth property.

預設值為 true。

    public function get variableColumnWidth():Boolean
    public function set variableColumnWidth(value:Boolean):void

The vertical alignment of layout elements.

If the value is "bottom", "middle",
or "top" then the layout elements are aligned relative
to the container’s contentHeight property.

If the value is "contentJustify" then the actual
height of the layout element is set to
the container’s contentHeight property.
The content height of the container is the height of the largest layout element.
If all layout elements are smaller than the height of the container,
then set the height of all the layout elements to the height of the container.

If the value is "justify" then the actual height
of the layout elements is set to the container’s height.

If the value is "baseline" then the elements are positioned
such that their text is aligned to the maximum of the elements’ text ascent.

預設值為 "top"。

    public function get verticalAlign():String
    public function set verticalAlign(value:String):void

Constructor.
Initializes the layout property to an instance of
the HorizontalLayout class.