| Name | Value | Description | |||
| exNoLine | 0 | The control displays no lines when painting the hierarchy. | |||
| exDotLine | -1 | The control uses a dotted line to paint the hierarchy. | |||
| exSolidLine | 1 | The control uses a solid line to paint the hierarchy. | |||
| exThinLine | 2 | The control uses a thin line to paint the hierarchy. |