The BaseListData class defines the data type of the listData
property implemented by drop-in item renderers or drop-in item editors.
All drop-in item renderers and drop-in item editors must implement the
IDropInListItemRenderer interface, which defines the listData
property.
The listData property is of type BaseListData,
where the BaseListData class has three subclasses:
DataGridListData, ListData, and TreeListData.
The actual data type of the value of the listData property
depends on the control using the drop-in item renderer or item editor.
For a DataGrid control, the value is of type DataGridListData,
for a List control the value is of type ListData,
and for a Tree control, the value is of type TreeListData.
When used as a drop-in item renderer or drop-in item editor,
Flex sets the listData property to a BaseListData-derived
class containing information computed about the item in the data provider
containing the data for the item.
While the properties of this class are writable,
you should consider them to be read only.
They are initialized by the list class,
and read by an item renderer or item editor.
Changing these values can lead to unexpected results.
The properties are marked bindable, but these properties
do not actually do any change detection or send change events.
The properties are changed as a whole by setting a new
value for the listData property.
The change event for the modification of
the listData property updates all bindings.
The index of the column of the List-based control relative
to the currently visible columns of the control, where the first column
is at an index of 1.
The index of the row of the DataGrid, List, or Tree control relative
to the currently visible rows of the control, where the first row
is at an index of 1.
The index of the column of the List-based control relative
to the currently visible columns of the control, where the first column
is at an index of 1.
This property can be used as the source for data binding.
label
property
public var label:String
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
The textual representation of the item data, based on the list class's
itemToLabel() method.
This property can be used as the source for data binding.
A reference to the list object that owns this item.
This should be a ListBase-derived class.
This property is typed as IUIComponent so that drop-ins
like Label and TextInput don't have to have dependencies
on List and all of its dependencies.
This property can be used as the source for data binding.
rowIndex
property
public var rowIndex:int
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
The index of the row of the DataGrid, List, or Tree control relative
to the currently visible rows of the control, where the first row
is at an index of 1.
For example, you click on an item in the control and rowIndex
is set to 3.
You then scroll the control to change the row's position in the visible rows
of the control, and then click on the same row as before.
The rowIndex now contains a different value corresponding to
the new index of the row in the currently visible rows.
This property can be used as the source for data binding.
uid
property
uid:String
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
The unique identifier for this item.
This property can be used as the source for data binding.
Implementation public function get uid():String public function set uid(value:String):void
Constructor Detail
BaseListData
()
Constructor
public function BaseListData(label:String, uid:String, owner:IUIComponent, rowIndex:int = 0, columnIndex:int = 0)
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
Constructor.
Parameters
label:String — The textual representation of the item data.
uid:String — A unique identifier.
owner:IUIComponent — A reference to the list control.
rowIndex:int (default = 0) — The index of the row in the currently visible rows of the control.
columnIndex:int (default = 0) — The index of the column in the currently visible columns of the
control.
flash.events.EventDispatcher