Tree View
A Tree View control organizes its tree view item collection into groups in a hierarchal fashion. While the hierarchal structure is somewhat similar to a menu (for example, the tree view also uses a main item and a list of sub-items to build an organized list of its items collection), the tree view uses a somewhat different layout. Tree view items with connected sub-items are expandable and collapsible.
A tree view initiates horizontal and/or vertical scroll bars if it is resized to the point where its bottom or right-most edge meets the edges of its contents.
See Items Controls to view the usage and description of the properties for this control.