View Structure and Design 

Window – View – View Set

The top node of the interface definition hierarchy is the window which is displayed when a Web Dynpro application is executed. This window is made up of at least one view. A view in turn consists of UI elements.

You can define the display sequence of multiple views using plugs and navigation links.

It is also possible to display multiple views at the same time. To do this, you have to embed the views in a view set. A view set provides various containers in which you can arrange views or other view sets. You can also use the ViewContainerUIElement to embed views.

The graphical tool that helps you with the creation and design of a UI is called the Navigation Modeler. You can also use this tool to define the navigation between the views. 

Empty View

The empty view is a special type of view. It is always generated automatically in a window or a view set area, provided that no view has been embedded manually. It may also be preferable to embed an empty view in a non-empty window as well. Just like a normal view, the empty view occupies a certain area of a window at runtime and can be used to hide a different view, for example, using specific controls.

When you create an empty view, an inbound plug with the default name ShowEmptyView is created.