# HierarchyTraversalDirection

> Direction of traversal operation.

## Definition

* **Type:** Enum
* **Namespace:** [Unity.Hierarchy](/engine/6000.6/script-reference/unity/hierarchy.md)
* **Assembly:** UnityEngine.HierarchyCoreModule

```csharp
[Flags]
public enum HierarchyTraversalDirection : uint
```

## Fields

| Value                                                                                               | Description            |
| --------------------------------------------------------------------------------------------------- | ---------------------- |
| [Children](/engine/6000.6/script-reference/unity/hierarchy/hierarchytraversaldirection/children.md) | Traverse all children. |
| [Parents](/engine/6000.6/script-reference/unity/hierarchy/hierarchytraversaldirection/parents.md)   | Traverse all parents.  |