internal override void Redo() { Relation.RemoveLink(Parent, Child); IsUndone = false; }
override internal void Undo() { _relation.RemoveLink(_parent, _child); IsUndone = true; }
internal override void Redo() { Relation.RemoveLink(Parent, Child); IsUndone = false; }
override internal void Undo() { _relation.RemoveLink(_parent, _child); IsUndone = true; }