Types of hierarchical tree layout structure.
| Constant | Value | Description |
|---|---|---|
| esriLayoutLeftMainLine | 0 | Main line tree layout structure with branches drawing out from the main line placed on the left side of it. |
| esriLayoutRightMainLine | 1 | Main line tree layout structure with branches drawing out from the main line placed on the right side of it. |
| esriLayoutMainLine | 2 | Main line tree layout structure with branches drawing out from the main line placed on the both sides of it. |
| esriLayoutCompactTree | 3 | Compact tree layout structure. |
| esriLayoutSmartTree | 4 | Smart tree layout structure. |