| Package | mx.collections |
| Interface | public interface IHierarchicalCollectionView extends ICollectionView , IEventDispatcher |
| Implementors | HierarchicalCollectionView |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Related API Elements
Public Properties
Hide Inherited Public Properties
Show Inherited Public Properties| Property | Defined By | ||
|---|---|---|---|
 | filterFunction : Function
A function that the view will use to eliminate items that do not
match the function's criteria. | ICollectionView | |
| hasRoot : Boolean [read-only]
A flag that, if true, indicates that the current data provider has a root node;
for example, a single top-level node in a hierarchical structure. | IHierarchicalCollectionView | ||
| length : int [read-only]
The number of items in this view. | ICollectionView | |
| openNodes : Object
An Array of Objects containing the data provider element
for all the open branch nodes of the data. | IHierarchicalCollectionView | ||
| showRoot : Boolean
A Boolean flag that specifies whether to display the data provider's root node. | IHierarchicalCollectionView | ||
| sort : ISort
The ISort that will be applied to the ICollectionView. | ICollectionView | |
| source : IHierarchicalData
The source data of the IHierarchicalCollectionView. | IHierarchicalCollectionView | ||
Public Methods
| Method | Defined By | ||
|---|---|---|---|
Adds a child node to a node of the data. | IHierarchicalCollectionView | ||
Adds a child node to a node of the data at a specific index in the data. | IHierarchicalCollectionView | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | IEventDispatcher | |
Closes a node to hide its children. | IHierarchicalCollectionView | ||
|
Returns whether the view contains the specified object. | ICollectionView | |
|
Creates a new IViewCursor that works with this view. | ICollectionView | |
|
Prevents changes to the collection itself and items within the
collection from being dispatched by the view. | ICollectionView | |
|
Dispatches an event into the event flow. | IEventDispatcher | |
|
Enables auto-updating. | ICollectionView | |
Returns a collection of children, if they exist. | IHierarchicalCollectionView | ||
Returns the depth of the node in the collection. | IHierarchicalCollectionView | ||
Returns the parent of a node. | IHierarchicalCollectionView | ||
|
Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | IEventDispatcher | |
| itemUpdated(item:Object, property:Object = null, oldValue:Object = null, newValue:Object = null):void
Notifies the view that an item has been updated. | ICollectionView | |
Opens a node to display its children. | IHierarchicalCollectionView | ||
|
Applies the sort and filter to the view. | ICollectionView | |
Removes the child node from the parent node. | IHierarchicalCollectionView | ||
Removes the child node from a node at the specified index. | IHierarchicalCollectionView | ||
|
Removes a listener from the EventDispatcher object. | IEventDispatcher | |
|
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type. | IEventDispatcher | |
Property Detail
hasRoot | property |
hasRoot:Boolean [read-only] | Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
A flag that, if true, indicates that the current data provider has a root node;
for example, a single top-level node in a hierarchical structure.
XML and Object are examples of data types that have a root node,
while Lists and Arrays do not.
Implementation
public function get hasRoot():BooleanopenNodes | property |
openNodes:Object| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
An Array of Objects containing the data provider element for all the open branch nodes of the data.
Implementation
public function get openNodes():Object public function set openNodes(value:Object):voidshowRoot | property |
showRoot:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
A Boolean flag that specifies whether to display the data provider's root node.
If the source data has a root node, and this property is set to
false, the collection will not include the root item.
Only the descendants of the root item will be included in the collection.
This property has no effect on a source with no root node, such as List and Array objects.
The default value is true.
Implementation
public function get showRoot():Boolean public function set showRoot(value:Boolean):voidRelated API Elements
source | property |
source:IHierarchicalData| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The source data of the IHierarchicalCollectionView.
Implementation
public function get source():IHierarchicalData public function set source(value:IHierarchicalData):voidMethod Detail
addChild | () | method |
public function addChild(parent:Object, newChild:Object):Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Adds a child node to a node of the data.
Parameters
parent:Object — The Object that defines the parent node.
| |
newChild:Object — The Object that defines the new node.
|
Boolean — true if the node is added successfully.
|
addChildAt | () | method |
public function addChildAt(parent:Object, newChild:Object, index:int):Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Adds a child node to a node of the data at a specific index in the data.
Parameters
parent:Object — The Object that defines the parent node.
| |
newChild:Object — The Object that defines the new node.
| |
index:int — The zero-based index of where to insert the child node.
|
Boolean — true if the node is added successfully.
|
closeNode | () | method |
getChildren | () | method |
public function getChildren(node:Object):ICollectionView| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Returns a collection of children, if they exist.
Parameters
node:Object — The Object that defines the node.
If null, return a collection of top level nodes.
|
ICollectionView — ICollectionView instance containing the child nodes.
|
getNodeDepth | () | method |
getParentItem | () | method |
public function getParentItem(node:Object):*| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Returns the parent of a node.
The parent of a top-level node is null.
Parameters
node:Object — The Object that defines the node.
|
* — The parent node containing the node as child,
null for a top-level node,
and undefined if the parent cannot be determined.
|
openNode | () | method |
removeChild | () | method |
public function removeChild(parent:Object, child:Object):Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Removes the child node from the parent node.
Parameters
parent:Object — The Object that defines the parent node,
and null for top-level nodes.
| |
child:Object — The Object that defines the child node to be removed.
|
Boolean — true if the node is removed successfully.
|
removeChildAt | () | method |
public function removeChildAt(parent:Object, index:int):Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Removes the child node from a node at the specified index.
Parameters
parent:Object — The node object that currently parents the child node.
Set parent to null for top-level nodes.
| |
index:int — The zero-based index of the child node to remove relative to the parent.
|
Boolean — true if successful, and false if not.
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