An item (or property item) describes a single characteristic of a node object. Items are defined by structure objects in the Structures collection. Since the collection of Structure objects is the same for all nodes in a tree, all nodes have the same set of characteristic properties.

Some property items are pre-defined (for example, Level, Image, and Name), but all others are dynamically defined. A node may contain up to 255 items, which allows a highly flexible configuration of the SAP Table Tree control. The entire appearance of the control and the data stored in the control is configured by the Structures collection.