# SubMenuItem.ICallback interface

Namespace: [Eto.Forms](https://eto.picoe.ca/api/namespace/eto.forms.md) · Assembly: [Eto](https://eto.picoe.ca/api/assembly/eto.md)

```cs
public interface SubMenuItem.ICallback : MenuItem.ICallback
```

Callback interface for instances of [SubMenuItem](https://eto.picoe.ca/api/type/eto.forms.submenuitem.md)

**Derived types:** [SubMenuItem.Callback](https://eto.picoe.ca/api/type/eto.forms.submenuitem.callback.md)

## Methods

- [OnClosed](https://eto.picoe.ca/api/type/eto.forms.submenuitem.icallback/onclosed.md): Raises the [SubMenuItem.Closed](https://eto.picoe.ca/api/type/eto.forms.submenuitem/closed.md) event.
- [OnClosing](https://eto.picoe.ca/api/type/eto.forms.submenuitem.icallback/onclosing.md): Raises the [SubMenuItem.Closing](https://eto.picoe.ca/api/type/eto.forms.submenuitem/closing.md) event.
- [OnOpening](https://eto.picoe.ca/api/type/eto.forms.submenuitem.icallback/onopening.md): Raises the [SubMenuItem.Opening](https://eto.picoe.ca/api/type/eto.forms.submenuitem/opening.md) event.

## Inherited Members

- From [MenuItem.ICallback](https://eto.picoe.ca/api/type/eto.forms.menuitem.icallback.md): [OnClick](https://eto.picoe.ca/api/type/eto.forms.menuitem.icallback/onclick.md), [OnValidate](https://eto.picoe.ca/api/type/eto.forms.menuitem.icallback/onvalidate.md)