SplitContainer SAP SE Provides a main content and a secondary content area 1.15.0 API is not yet finished and might change completely sap.ui.core/Control Shows / Hides the secondary area. The width if the secondary content. The height is always 100%. Do not use. Use secondaryContentSize instead. Only available for backwards compatibility. Whether to show the secondary content on the left ("Horizontal", default) or on the top ("Vertical"). The content to appear in the main area. The content to appear in the secondary area.