| 套件 | mx.controls.listClasses |
| 類別 | public class BaseListData |
| 繼承 | BaseListData  EventDispatcher Object |
| 子類別 | DataGridListData, ListData, TreeListData |
| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
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.
相關 API 元素
隱藏繼承公用屬性
顯示繼承公用屬性| 屬性 | 定義自 | ||
|---|---|---|---|
| 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 | ||
 | constructor : Object
類別物件的參照或是特定物件實體的建構函數。 | Object | |
| 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 | ||
| 方法 | 定義自 | ||
|---|---|---|---|
Constructor. | BaseListData | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
會在 EventDispatcher 物件註冊事件偵聽程式，以便讓偵聽程式收到事件的通知。 | EventDispatcher | |
|
會將事件傳送到事件流程。 | EventDispatcher | |
|
會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。 | EventDispatcher | |
|
指出物件是否有已定義的指定屬性。 | Object | |
|
指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。 | Object | |
|
指出指定的屬性是否存在，以及是否可列舉。 | Object | |
|
會從 EventDispatcher 物件移除偵聽程式。 | EventDispatcher | |
|
為迴圈作業設定動態屬性的可用性。 | Object | |
|
傳回代表此物件的字串，根據地區特定慣例進行格式化。 | Object | |
|
會傳回指定之物件的字串形式。 | Object | |
|
會傳回指定之物件的基本值。 | Object | |
|
檢查此 EventDispatcher 物件是否已註冊事件偵聽程式，或者此物件的任何祖系已為特定事件類型註冊事件偵聽程式。 | EventDispatcher | |
columnIndex | 屬性 |
public var columnIndex:int| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
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.
此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 __NoChangeEvent__ 事件。
label | 屬性 |
public var label:String| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
The textual representation of the item data, based on the list class's
itemToLabel() method.
此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 __NoChangeEvent__ 事件。
owner | 屬性 |
public var owner:IUIComponent| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
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.
此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 __NoChangeEvent__ 事件。
rowIndex | 屬性 |
public var rowIndex:int| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | 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.
此屬性可以做為資料繫結的來源。一旦修改此屬性，將傳送 __NoChangeEvent__ 事件。
uid | 屬性 |
BaseListData | () | 建構函式 |
public function BaseListData(label:String, uid:String, owner:IUIComponent, rowIndex:int = 0, columnIndex:int = 0)| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
Constructor.
參數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) | |
columnIndex:int (default = 0) |
Tue Jun 12 2018, 03:47 PM Z