| Package | mx.controls.listClasses |
| Class | public class BaseListData |
| Subclasses | DataGridListData, ListData, TreeListData |
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.
See also
| Property | Defined by | ||
|---|---|---|---|
| columnIndex : int
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.
| BaseListData | ||
| label : String
The textual representation of the item data, based on the list class's
itemToLabel() method. | BaseListData | ||
| owner : IUIComponent
A reference to the list object that owns this item.
| BaseListData | ||
| rowIndex : int
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.
| BaseListData | ||
| uid : String
The unique identifier for this item.
| BaseListData | ||
| Method | Defined by | ||
|---|---|---|---|
|
BaseListData(label:String, uid:String, owner:IUIComponent, rowIndex:int = 0, columnIndex:int = 0)
Constructor.
| BaseListData | ||
| columnIndex | property |
public var columnIndex:intThe 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.
| label | property |
public var label:String
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.
| owner | property |
public var owner:IUIComponentA 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.
| rowIndex | property |
public var rowIndex:int
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.
| uid | property |
uid:String [read-write]The unique identifier for this item.
Implementation public function get uid():String
public function set uid(value:String):void
| BaseListData | () | constructor |
public function BaseListData(label:String, uid:String, owner:IUIComponent, rowIndex:int = 0, columnIndex:int = 0)Constructor.
Parameterslabel: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) |
|
columnIndex:int (default = 0) |