# GH_FileSystemEventServer.FileEvent delegate

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 delegate GH_FileSystemEventServer.FileEvent
```

This delegate is called when changes to a certain file occur.

**Signature:**

```cs
void GH_FileSystemEventServer.FileEvent(string path)
```

**Parameters:**

- `path` ([string](https://learn.microsoft.com/dotnet/api/system.string)): The path of the file involved.