UI Element Container 

The UI elements of a view are maintained in a hierarchical structure. The hierarchy is based on aggregations like the parent-child relationship between UI element container and UI element or the relationship between a tabstrip UI element and its tab subelements. The top element in this hierarchy is a UI elements container that is added to a view. The parent-child relationship between UI element container and UI element provides a general mechanism for the hierarchy structure of a view. In a UI element container, any UI elements and additional UI element containers can be nested.

 

There are special UI elements like the TabStrip UI element. They can be considered containers, but unlike a UI element container can only contain certain subelements. A TabStrip UI element, for example, can only contain Tab subelements. Each Tab subelement can contain a title (Caption UI element), a toolbar and additional UI elements to display a content.