TreeView

Label: :IA_Function
Property: type: TreeView
Inherits from: Function and View

The TreeView Function renders data in a collapsible tree view from given source (list or tree) using jqxTree from jqWidgets. Optionally, items can have checkboxes for multple selection.

In the source data (#list parameter) a child element can appear multiple times (with the same id) and reference different parents.

Looped referencing is not supported (a → b → a or a → b → c → a or a → b → c → b).

TreeView
- Function parameters
  - Input format
    - keyFor example
- Outgoing triggers

Function parameters

Key	Description	Default value	Possible values
`area`	The area in which the View is rendered.	content	`content\|sidebar-right\|sidebar_left`
`config`	Configuration settings for jqxTree widget (from jqxTree documentation)	`null`
`items`	Source data in item format (see 'Input format' below)		array
`keyFor`	Key mapping for input records if they do not have the required format
`tree`	Source data in tree format (see 'Input format' below)		array
`search`	String to search in the tree. Tree branches will collapse and matching elements will be highlighted	`null`

Input format

Input can be passed to TreeView through either of two parameters: items or tree. Both take an array of items, each item differing only in whether they contain a list of children (tree), or contain the identifier of their parent (items).

Each item should have the following structure:

Key	Type	Description
id	string/number	(Required) Identifier within the tree.
label	string	(Required) Label for this item to be shown in the tree.
parentId	string	(For `items` parameter) The identifier of the parent item.
items	array	(For `tree` parameter) The sub-items of this item.
html	string	Html to display as the item instead of the label.
disabled	true/false	Item is disabled (not clickable or selectable).
checked	true/false	Item is checked.
expanded	true/false	Sub-items of item are also visible.
selected	true/false	Item is selected.
icon	string	Icon to display next to the item.
iconsize	number	Size of the icon.
class	string	CSS class to add to the item.

If they do not have this structure, the keyFor parameter can be set to indicate which expected keys correspond to which record keys.

`keyFor` example

For records with the structure:

	{
		uuid: '12345',
		content: 'Label',
		parent: '4444'
	}

The $keyFor parameter should be:

	{
		id: 'uuid',
		label: 'content',
		parentId: 'parent'
	}

Outgoing triggers

Type: `itemSelect`

Occurrence: triggered when a user selects an item in the tree (event is triggered only if the item is not selected).