

| Name | Value | Description | |||
| exNoButtons | 0 | The control displays no expand buttons. | |||
| exPlus | -1 |
A plus sign is displayed for collapsed nodes, and a minus sign for expanded
nodes.( | |||
| exArrow | 1 |
The control uses icons to display the expand buttons.( | |||
| exCircle | 2 |
The control uses icons to display the expand buttons. ( | |||
| exWPlus | 3 |
The control uses icons to display the expand buttons. ( | |||
| exCustom | 4 | The HasButtonsCustom property specifies the index of icons being used for +/- signs on parent nodes. |