Returns the content representing the attached data
Returns whether this item is expanded, showing it's children, or closed
Returns true, when this item has a visible checkbox in front to expand the subsequent branch
Shows or hides the checkbox for expanding the subsequent branch
Returns true if the CSS_CLASS.SELECTED is attached to this item
Tries to expanding the TreeList of children, by dispatching EVENT.EXPAND. The user of the tree needs to add an event listener to the tree in order to create that TreeList and add it as branch to this item
Returns a list of all data referenced by the items succeeding this
Dispatches the EVENT.SELECT event
For multiple selection (+Ctrl)
For selection over interval (+Shift)
Extension of li-element that represents an object in a TreeList with a checkbox and user defined input elements as content. Additionally, may hold an instance of TreeList as branch to display children of the corresponding object.