# Overlap enum

Namespace: [Grasshopper2.Data](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.data.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
public enum Overlap
```

Enumerates the possible ways in which a shared type hierarchy can be modified.

## Values

| Name | Value | Description |
| --- | --- | --- |
| Unchanged | 0 | Shared hierarchy is unchanged. |
| Modified | 1 | Shared hierarchy was updated. |