Package: | Ext.tree |
Class: | DefaultSelectionModel |
Extends: | Observable |
Defined In: | TreeSelectionModel.js |
方法 | 定义对象 | |
---|---|---|
addEvents(Object object ) : void |
Observable | |
将对象中没有的事件从给出的对象中复制过来。 | ||
addListener(String eventName , Function handler , [Object scope ], [Object options ]) : void |
Observable | |
为该组件加入事件处理器函数 | ||
clearSelections() : void | DefaultSelectionModel | |
Clear all selections | ||
fireEvent(String eventName , Object... args ) : Boolean |
Observable | |
触发指定的事件, 并将参数传入(至少要有事件名称)。 | ||
getSelectedNode() : TreeNode | DefaultSelectionModel | |
Get the selected node | ||
hasListener(String eventName ) : Boolean |
Observable | |
检查该对象是否拥有指定事件的侦听器 | ||
isSelected(TreeNode node ) : Boolean |
DefaultSelectionModel | |
Returns true if the node is selected | ||
on(String eventName , Function handler , [Object options ]) : void |
Observable | |
为该组件加入事件处理器函数, addListener 的简写方式 | ||
purgeListeners() : void | Observable | |
从对象身上移除所有的侦听器 | ||
removeListener(String eventName , Function handler , [Object scope ]) : void |
Observable | |
移除侦听器 | ||
select(TreeNode node ) : TreeNode |
DefaultSelectionModel | |
Select a node. | ||
selectNext() : TreeNode | DefaultSelectionModel | |
Selects the node above the selected node in the tree, intelligently walking the nodes | ||
selectPrevious() : TreeNode | DefaultSelectionModel | |
Selects the node above the selected node in the tree, intelligently walking the nodes | ||
un(String eventName , Function handler , [Object scope ]) : void |
Observable | |
移除侦听器, removeListener 的简写方式 | ||
unselect(TreeNode node ) : void |
DefaultSelectionModel | |
Deselect a node. |
事件 | 定义对象 | |
---|---|---|
beforeselect : (DefaultSelectionModel this , TreeNode node , TreeNode node ) |
DefaultSelectionModel | |
Fires before the selected node changes, return false to cancel the change | ||
selectionchange : (DefaultSelectionModel this , TreeNode node ) |
DefaultSelectionModel | |
Fires when the selected node changes |
public function addEvents(Object object
)
object
: Objectvoid
public function addListener(String eventName
, Function handler
, [Object scope
], [Object options
])
eventName
: Stringhandler
: Functionscope
: Objectoptions
: Object
组合选项
使用选项参数可以组合不同类型的监听器:
下面是一个标准的、延迟执行的、一次性的监听器,将会自动停止事件并传递一个自定义的参数(forumId)
el.on('click', this.onClick, this, { single: true, delay: 100, stopEvent : true, forumId: 4 });
这个方法也允许传递的单个参数是一个包含多个指定处理函数的设置对象。
一次调用多个处理函数
代码:
el.on({ 'click' : { fn: this.onClick scope: this, delay: 100 }, 'mouseover' : { fn: this.onMouseOver scope: this }, 'mouseout' : { fn: this.onMouseOut scope: this } });
或者简写为:
代码:
el.on({ 'click' : this.onClick, 'mouseover' : this.onMouseOver, 'mouseout' : this.onMouseOut scope: this });
void
public function clearSelections()
void
public function fireEvent(String eventName
, Object... args
)
eventName
: Stringargs
: Object...Boolean
public function getSelectedNode()
TreeNode
public function hasListener(String eventName
)
eventName
: StringBoolean
public function isSelected(TreeNode node
)
node
: TreeNodeBoolean
public function on(String eventName
, Function handler
, [Object options
])
eventName
: Stringhandler
: Functionoptions
: Objectvoid
public function purgeListeners()
void
public function removeListener(String eventName
, Function handler
, [Object scope
])
eventName
: Stringhandler
: Functionscope
: Objectvoid
public function select(TreeNode node
)
node
: TreeNodeTreeNode
public function selectNext()
TreeNode
public function selectPrevious()
TreeNode
public function un(String eventName
, Function handler
, [Object scope
])
eventName
: Stringhandler
: Functionscope
: Objectvoid
public function unselect(TreeNode node
)
node
: TreeNodevoid
public event beforeselect
this
: DefaultSelectionModelnode
: TreeNodenode
: TreeNodepublic event selectionchange
this
: DefaultSelectionModelnode
: TreeNode