AllowMultipleSelection

Sets a value indicating whether more than one items can be selected simultaneously.

ExtendMode

Sets whether to prevent deselecting currently selected items when they are outside of a newly drawn lasso rectangle.

IncludeItemsIfIntersect

Sets a value indicating which items are selected when drawing a selection rectangle.

SetsDirtyFlag

Sets a value indicating whether the diagram's Dirty flag should be set when selection changes.

Style

Sets a value indicating how to display multiple selection of items.