A tree view or an outline view is a graphical user interface element (widget) that presents a hierarchical view of information. Each item (often called a branch or a node) can have a number of subitems. This is often visualized by indentation in a list.
An item can be expanded to reveal subitems, if any exist, and collapsed to hide subitems.
Tree views are often seen in file manager applications, where they allow the user to navigate the file system directories. They are also used to present hierarchical data, such as an XML document. Extended tree view is the central component of an outliner application.
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Famous quotes containing the words tree and/or view:
“When the tree falls, the monkeys scatter.”
—Chinese proverb.
“A man assumes that a woman’s refusal is just part of a game. Or, at any rate, a lot of men assume that. When a man says no, it’s no. When a woman says no, it’s yes, or at least maybe. There is even a joke to that effect. And little by little, women begin to believe in this view of themselves.”
—Erica Jong (b. 1942)