selected(index, [selected])
Class: Tree.
Description:
Sets or get a whether item or items at specified index or array o indexes are selected. This adds or removes items to/from current selection instead of replacing current selection like selection() method does. If "selected" argument is supplied, it will select or deselect specified items.
Parameters:
| Name | Type | Description |
|---|---|---|
|
|
Array.<number> | Array.<Array.<number>> |
Index path of one item as array, or multiple items as array of arrays. When getting selection status, only first item is used. |
|
|
boolean |
If supplied, it will indicate if specified items should be selected or not. |
Returns:
If selected arguments is passed, this Tree component is returned; otherwise a selection status of first specified item is returned, or undefined if index doesn't point to an item.
Type: boolean | Tree
Examples:
Add one item to current selection:
tree.selected([0,2], true);Add two items to current selection:
tree.selected([[0,3], [0,4]], true);Deselect one item:
tree.selected([0,3], false);Check if one item is selected:
let selected = tree.selected([0,4]); // -> true