[Reprinted] ext core API details Ext. Data (13th)-tree/node

Ext. Data. Tree
Inherited from observable, used to store the data structure of the tree

Method
Tree ([node root])
Use root as the root to construct the Ext. Data. Tree object

Getnodebyid (string ID): Node
Get the node by the specified ID

Getrootnode (): Node
Get the root node, which is more convenient to get from the property Root

Setrootnode (node): Node
Set the root node

The event has
Append: (TREE tree, node parent, node, number index)
Beforeappend: (TREE tree, node parent, node)
Beforeinsert: (TREE tree, node parent, node, node refnode)
Beforemove: (TREE tree, node, node oldparent, node newparent, number index)
Beforeremove: (TREE tree, node parent, node)
Insert: (TREE tree, node parent, node, node refnode)
Move: (TREE tree, node, node oldparent, node newparent, number index)
Remove: (TREE tree, node parent, node)

Ext. Data. Node
Node
Attribute
Attributes: Object
Node Attribute Set

Childnodes: Array
Subnode

Firstchild: Node
First subnode

ID: String
ID

Lastchild: Node
Last subnode

Nextsibling: Node
Next sibling Node

Parentnode: Node
Parent node

Previussibling: Node
Previous sibling Node

Node (Object Attributes)
Construct a node

Appendchild (node/array node): Node
Attach the node as the lastchild of the current node

Bubble (function FN, [object scope], [array ARGs]): void
From the current node to the root node, apply FN to each node until a FN returns false.

Cascade (function FN, [object scope], [array ARGs]): void
Apply FN to each child node from the current node until false is returned.

Contains (node): Boolean
Is the current node an ancestor node of a node?

Eachchild (function FN, [object scope], [array ARGs]): void
Basically the same as cascade, but only apply FN to sub-nodes

Findchild (string attribute, mixed value): Node
Find the first node with the attribute value of value in the subnode.

Findchildby (function FN, [object scope]): Node
Find the first application FN return real node in the subnode

Getdepth (): Number
Obtain the depth of the current node. The root node depth is 0.

Getownertree (): Tree
Get the tree object of the current node

Getpath ([String ATTR]): String
Obtain the path of the current node. The default value is ATTR.

Indexof (node): Number
Node position in the subnode of the current node

Insertbefore (node, node refnode): Node
Insert a node before the reference node refnode

Isancestor (node): Boolean
Is the current node an ancestor node of a node?

Isfirst (): Boolean
Islast (): Boolean
The current node is the first or last node of the parent node.

Isleaf (): Boolean
Is it a leaf node? Does not include subnodes

Item (number index): Node
Subnode of Index

Removechild (node): Node
Remove node subnodes

ReplaceChild (node newchild, node oldchild): Node
Replace oldchild with newchild

Sort (function FN, [object scope]): void
Sorts subnodes with the specified FN