Functions: Tree

Index

• addChildNodes
• appendChildNode
• clear
• closeNode
• flattenChildNodes
• flattenNode
• getChildNodes
• getNodeById
• getOpenNodes
• getRootNode
• getSelectedNode
• insertNodeAfter
• insertNodeBefore
• loadData
• openNode
• removeChildNodes
• removeNode
• scrollToNode
• scrollTop
• selectNode
• toggleNode
• toString
• update
• updateNode

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addChildNodes(newNodes, [index], [parentNode])

Adds an array of new child nodes to a parent node at the specified index.

Arguments

1. newNodes (Array): An array of new child nodes.
2. [index] (number): The 0-based index of where to insert the child node.
3. [parentNode] (Node): The Node object that defines the parent node.

Returns

(boolean): Returns true on success, false otherwise.

Example

appendChildNode(newNode, parentNode)

Adds a new child node to the end of the list of children of a specified parent node.

• If the parent is null or undefined, inserts the child at the specified index in the top-level.
• If the parent has children, the method adds the child as the last child.
• If the parent does not have children, the method adds the child to the parent.

Arguments

1. newNode (Object): The new child node.
2. parentNode (Node): The Node object that defines the parent node.

Returns

(boolean): Returns true on success, false otherwise.

Example

clear()

Clears the tree.

Example

closeNode(node, [options])

Closes a node to hide its children.

Arguments

1. node (Node): The Node object.
2. [options={}] (Object): The options object.
3. [options.silent=false] (boolean): Sets true to prevent "closeNode" event from being triggered.

Returns

(boolean): Returns true on success, false otherwise.

Example

flattenChildNodes(parentNode)

Flattens all child nodes of a parent node.

Arguments

1. parentNode (Node): The Node object that defines the parent node.

Returns

(Array): Returns an array of Node objects containing all the child nodes of the parent node.

Example

flattenNode(node)

Flattens a node.

Arguments

1. node (Node): The Node object.

Returns

(Array): Returns a flattened list of Node objects.

Example

getChildNodes(parentNode)

Gets a list of child nodes.

Arguments

1. parentNode (Node): The Node object that defines the parent node. If null or undefined, returns a list of top level nodes.

Returns

(Array): Returns an array of Node objects containing all the child nodes of the parent node.

Example

getNodeById(id)

Gets a node by its unique id. This assumes that you have given the nodes in the data a unique id.

Arguments

1. id (number|string): An unique node id. A null value will be returned if the id doesn't match.

Returns

(Node): Returns a Node object that matches the id, null otherwise.

Example

getOpenNodes()

Gets an array of open nodes.

Returns

(Array): Returns an array of Node objects containing open nodes.

Example

getRootNode()

Returns

(Node): Returns the root node, or null if empty.

Example

getSelectedNode()

Returns

(Node): Returns the selected node, or null if not selected.

Example

insertNodeAfter(newNode, referenceNode)

Inserts the specified node after the reference node.

Arguments

1. newNode (Object): The new sibling node.
2. referenceNode (Node): The Node object that defines the reference node.

Returns

(boolean): Returns true on success, false otherwise.

Example

insertNodeBefore(newNode, referenceNode)

Inserts the specified node before the reference node.

Arguments

1. newNode (Object): The new sibling node.
2. referenceNode (Node): The Node object that defines the reference node.

Returns

(boolean): Returns true on success, false otherwise.

Example

loadData(data)

Loads data in the tree.

Arguments

1. data (Object|Array): The data is an object or array of objects that defines the node.

Example

openNode(node, [options])

Opens a node to display its children.

Arguments

1. node (Node): The Node object.
2. [options={}] (Object): The options object.
3. [options.silent=false] (boolean): Sets true to prevent "openNode" event from being triggered.

Returns

(boolean): Returns true on success, false otherwise.

Example

removeChildNodes(parentNode)

Removes all child nodes from a parent node.

Arguments

1. parentNode (Node): The Node object that defines the parent node.

Returns

(boolean): Returns true on success, false otherwise.

Example

removeNode(node)

Removes a node and all of its child nodes.

Arguments

1. node (Node): The Node object.

Returns

(boolean): Returns true on success, false otherwise.

Example

scrollToNode(node)

Sets the current scroll position to this node.

Arguments

1. node (Node): The Node object.

Returns

(boolean): Returns true on success, false otherwise.

Example

scrollTop([value])

Arguments

1. [value] (number): If the value is specified, indicates the new position to set the scroll bar to.

Returns

(number): Returns the vertical scroll position.

Example

selectNode(node, [options])

Selects a node.

Arguments

1. node (Node): The Node object. If null or undefined, deselects the current node.
2. [options={}] (Object): The options object.
3. [options.silent=false] (boolean): Sets true to prevent "selectNode" event from being triggered.

Returns

(boolean): Returns true on success, false otherwise.

Example

toggleNode(node, [options])

Toggles a node to display or hide its children.

Arguments

1. node (Node): The Node object.
2. [options={}] (Object): The options object.
3. [options.silent=false] (boolean): Sets true to prevent "closeNode", "openNode", and "selectNode" events from being triggered.

Example

toString(node)

Serializes the current state of a node to a JSON string.

Arguments

1. node (Node): The Node object. If null, returns the whole tree.

Returns

(string): Returns a JSON string represented the tree.

Example

update()

Updates the tree.

Example

updateNode(node, data, [options])

Updates the data of a node.

Arguments

1. node (Node): The Node object.
2. data (Object): The data object.
3. [options={}] (Object): The options object.
4. [options.shallowRendering=false] (boolean): Sets true to render only the node without expanded child nodes.

Example