# MarkupViewChangedEventArgs class

Namespace: [Rhino.DocObjects.Tables](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.docobjects.tables.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md) · Since v9.0

```cs
public class MarkupViewChangedEventArgs : EventArgs
```

Markup view changed event arguments. Reports which markup, if any, a document is currently viewing or editing.

## Properties

- [Document](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.tables.markupviewchangedeventargs/document.md): The Rhino document.
- [Index](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.tables.markupviewchangedeventargs/index.md): The table index of the markup being viewed or edited, or -1 if none (for example when leaving markup mode or while creating a new markup).
- [Mode](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.tables.markupviewchangedeventargs/mode.md): The markup mode the document is now in.