void node_PropertyCollapsed(object sender, PositionedPropertyEventArgs e)
{
// remember this property is collapsed (for later graph rebuilds)
expanded.Expressions.SetCollapsed(e.Property.Expression);
// just remove edge from underlying object graph (no need to fully rebuild)
e.Property.ObjectGraphProperty.TargetNode = null;
LayoutGraph(this.objectGraph);
}
void node_PropertyExpanded(object sender, PositionedPropertyEventArgs e)
{
// remember this property is expanded (for later graph rebuilds)
expanded.Expressions.SetExpanded(e.Property.Expression);
// add edge (+ possibly nodes) to underlying object graph (no need to fully rebuild)
e.Property.ObjectGraphProperty.TargetNode = this.objectGraphBuilder.ObtainNodeForExpression(e.Property.Expression);
LayoutGraph(this.objectGraph);
}
