# GH_NickNameTextBox.NickNameChangeCancelledEventHandler delegate

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

```cs
public delegate GH_NickNameTextBox.NickNameChangeCancelledEventHandler
```

**Signature:**

```cs
void GH_NickNameTextBox.NickNameChangeCancelledEventHandler(GH_NickNameTextBox sender)
```

**Parameters:**

- `sender` ([GH_NickNameTextBox](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.gh-nicknametextbox.md))