# GH_ProcessStep enum

Namespace: [Grasshopper.Kernel](https://developer.rhino3d.com/api/gh1/namespace/grasshopper.kernel.md) · Assembly: [Grasshopper](https://developer.rhino3d.com/api/gh1/assembly/grasshopper.md)

```cs
public enum GH_ProcessStep
```

Enumerates all possible solution states in which the document can be.

## Values

| Name | Value | Description |
| --- | --- | --- |
| PreProcess | 0 | The document is ready for a new solution |
| Process | 1 | The document is currently calculating a new solution, no changes are allowed during this phase |
| PostProcess | 2 | The document has completed a solution, and nothing has changed since. |
| Aborted | 3 | The last solution has been aborted before it reached completion. |