| 套件 | mx.controls.treeClasses |
| 類別 | public class DefaultDataDescriptor |
| 繼承 | DefaultDataDescriptor  Object |
| 實作 | ITreeDataDescriptor2, IMenuDataDescriptor |
| 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 |
dataDescriptor properties.
相關 API 元素
mx.controls.menuClasses.IMenuDataDescriptor
mx.controls.Menu
mx.controls.MenuBar
mx.controls.PopUpMenuButton
mx.controls.Tree
隱藏繼承公用屬性
顯示繼承公用屬性| 方法 | 定義自 | ||
|---|---|---|---|
Constructor. | DefaultDataDescriptor | ||
Add a child node to a node at the specified index. | DefaultDataDescriptor | ||
Provides access to a node's children. | DefaultDataDescriptor | ||
Returns a node's data. | DefaultDataDescriptor | ||
Returns the name of the radio button group to which
the node belongs, if any. | DefaultDataDescriptor | ||
getHierarchicalCollectionAdaptor(hierarchicalData:ICollectionView, uidFunction:Function, openItems:Object, model:Object = null):ICollectionView
Returns an ICollectionView instance that makes the hierarchical data appear
as if it was a linear ICollectionView instance. | DefaultDataDescriptor | ||
Returns the depth of the node, meaning the number of ancestors it has. | DefaultDataDescriptor | ||
Returns the parent of the node
The parent of a top-level node is null. | DefaultDataDescriptor | ||
Returns the type identifier of a node. | DefaultDataDescriptor | ||
Determines if the node actually has children. | DefaultDataDescriptor | ||
 |
指出物件是否有已定義的指定屬性。 | Object | |
Tests a node for termination. | DefaultDataDescriptor | ||
Returns whether the node is enabled. | DefaultDataDescriptor | ||
|
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 | |
Returns whether the node is toggled. | DefaultDataDescriptor | ||
|
指出指定的屬性是否存在，以及是否可列舉。 | Object | |
Removes the child node from a node at the specified index. | DefaultDataDescriptor | ||
Sets the value of the field or attribute in the data provider
that identifies whether the node is enabled. | DefaultDataDescriptor | ||
|
為迴圈作業設定動態屬性的可用性。 | Object | |
Sets the value of the field or attribute in the data provider
that identifies whether the node is toggled. | DefaultDataDescriptor | ||
|
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 | |
DefaultDataDescriptor | () | 建構函式 |
public function DefaultDataDescriptor()| 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.
addChildAt | () | 方法 |
public function addChildAt(parent:Object, newChild:Object, index:int, model:Object = null):Boolean| 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 |
Add a child node to a node at the specified index. This implementation does the following:
- If the
parentparameter is null or undefined, inserts thechildparameter at the specified index in the collection specified bymodelparameter. - If the
parentparameter has achildrenfield or property, the method adds thechildparameter to it at theindexparameter location. In this case, themodelparameter is not required. - If the
parentparameter does not have achildrenfield or property, the method adds thechildrenproperty to theparent. The method then adds thechildparameter to the parent at theindexparameter location. In this case, themodelparameter is not required. - If the
indexvalue is greater than the collection length or number of children in the parent, adds the object as the last child.
參數
parent:Object — The node object that will parent the child.
| |
newChild:Object — The node object that will be parented by the node.
| |
index:int — The 0-based index of where to put the child node relative to the parent.
| |
model:Object (default = null) |
Boolean — true if successful.
|
getChildren | () | 方法 |
public function getChildren(node:Object, model:Object = null):ICollectionView| 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 |
Provides access to a node's children. Returns a collection
of children if they exist. If the node is an Object, the method
returns the contents of the object's children field as
an ArrayCollection.
If the node is XML, the method returns an XMLListCollection containing
the child elements.
參數
node:Object — The node object currently being evaluated.
| |
model:Object (default = null) |
ICollectionView — An object containing the children nodes.
|
getData | () | 方法 |
public function getData(node:Object, model:Object = null):Object| 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 |
Returns a node's data. Currently returns the entire node.
參數
node:Object — The node object currently being evaluated.
| |
model:Object (default = null) |
Object — The node.
|
getGroupName | () | 方法 |
public function getGroupName(node:Object):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 |
Returns the name of the radio button group to which the node belongs, if any. This method is used by menu-based controls.
參數
node:Object — The node for which to get the group name.
|
String — The value of the node's groupName
attribute or field, or an empty string if there is no such
entry.
|
getHierarchicalCollectionAdaptor | () | 方法 |
public function getHierarchicalCollectionAdaptor(hierarchicalData:ICollectionView, uidFunction:Function, openItems:Object, model:Object = null):ICollectionView| 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 |
Returns an ICollectionView instance that makes the hierarchical data appear as if it was a linear ICollectionView instance.
參數
hierarchicalData:ICollectionView — The hierarchical data.
| |
uidFunction:Function — A function that takes an Object and returns the UID, as a String.
This parameter is usually the Tree.itemToUID() method.
| |
openItems:Object — The items that have been opened or set opened.
| |
model:Object (default = null) |
ICollectionView — An ICollectionView instance.
|
getNodeDepth | () | 方法 |
public function getNodeDepth(node:Object, iterator:IViewCursor, model:Object = null):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 |
Returns the depth of the node, meaning the number of ancestors it has.
參數
node:Object — The Object that defines the node.
| |
iterator:IViewCursor — An IViewCursor instance that could be used to do the calculation.
| |
model:Object (default = null) |
int — The depth of the node, where 0 corresponds to the top level,
and -1 if the depth cannot be calculated.
|
getParent | () | 方法 |
public function getParent(node:Object, collection:ICollectionView, model:Object = null):Object| 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 |
Returns the parent of the node
The parent of a top-level node is null.
參數
node:Object — The Object that defines the node.
| |
collection:ICollectionView — An ICollectionView instance that could be used to do the calculation.
| |
model:Object (default = null) |
Object — The parent node containing the node as child,
null for a top-level node,
and undefined if the parent cannot be determined.
|
getType | () | 方法 |
public function getType(node:Object):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 |
Returns the type identifier of a node. This method is used by menu-based controls to determine if the node represents a separator, radio button, a check box, or normal item.
參數
node:Object — The node object for which to get the type.
|
String — The value of the type attribute or field,
or the empty string if there is no such field.
|
hasChildren | () | 方法 |
public function hasChildren(node:Object, model:Object = null):Boolean| 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 |
Determines if the node actually has children.
參數
node:Object — The node object currently being evaluated.
| |
model:Object (default = null) |
Boolean — true if this node currently has children.
|
isBranch | () | 方法 |
public function isBranch(node:Object, model:Object = null):Boolean| 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 |
Tests a node for termination.
Branches are non-terminating but are not required to have any leaf nodes.
If the node is XML, returns true if the node has children
or a true isBranch attribute.
If the node is an object, returns true if the node has a
(possibly empty) children field.
參數
node:Object — The node object currently being evaluated.
| |
model:Object (default = null) |
Boolean — true if this node is non-terminating.
|
isEnabled | () | 方法 |
public function isEnabled(node:Object):Boolean| 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 |
Returns whether the node is enabled. This method is used by menu-based controls.
參數
node:Object — The node for which to get the status.
|
Boolean — The value of the node's enabled
attribute or field, or true if there is no such
entry or the value is not false.
|
isToggled | () | 方法 |
public function isToggled(node:Object):Boolean| 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 |
Returns whether the node is toggled. This method is used by menu-based controls.
參數
node:Object — The node for which to get the status.
|
Boolean — The value of the node's toggled
attribute or field, or false if there is no such
entry.
|
removeChildAt | () | 方法 |
public function removeChildAt(parent:Object, child:Object, index:int, model:Object = null):Boolean| 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 |
Removes the child node from a node at the specified index.
If the parent parameter is null
or undefined, the method uses the model parameter to
access the child; otherwise, it uses the parent parameter
and ignores the model parameter.
參數
parent:Object — The node object that currently parents the child node.
| |
child:Object — The node that is being removed.
| |
index:int — The 0-based index of the child node to remove relative to the parent.
| |
model:Object (default = null) |
Boolean — true if successful.
|
setEnabled | () | 方法 |
public function setEnabled(node:Object, value:Boolean):void| 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 |
Sets the value of the field or attribute in the data provider
that identifies whether the node is enabled.
This method sets the value of the node's enabled
attribute or field.
This method is used by menu-based controls.
參數
node:Object — The node for which to set the status.
| |
value:Boolean — Whether the node is enabled.
|
setToggled | () | 方法 |
public function setToggled(node:Object, value:Boolean):void| 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 |
Sets the value of the field or attribute in the data provider
that identifies whether the node is toggled.
This method sets the value of the node's toggled
attribute or field.
This method is used by menu-based controls.
參數
node:Object — The node for which to set the status.
| |
value:Boolean — Whether the node is toggled.
|
Tue Jun 12 2018, 03:47 PM Z