property Surface.ExpandLinkedElements as Boolean
Specifies whether the linked elements are expanded or collapsed.

TypeDescription
Boolean A Boolean expression that specifies whether the control expands or collapses the descendent elements. By descending element of current element we mean any element that has a link that starts from current element and ends to this element.
By default, the ExpandLinkedElements property is False. Use the ExpandLinkedElements property to add expand/collapse glyphs next to elements that has outgoing links. The OutgoingLinks property specifies the links that starts from the element. The Expanded property specifies whether the element is expanded or collapsed. Use the AllowMoveDescendents property to specify whether all descendents elements are moved once the focused element is moved. The Add method adds programmatically a link between two elements. Use the ShowLinksOnCollapse property to show the links between an element and collapsed elements. The ShowLinks property specifies the way the control shows the links on the surface.

The following screen shot shows the surface with ExpandLinkedElements property is True:

The following screen shot shows the surface with ExpandLinkedElements property is False ( by default ):