# UnknownUserData class

Namespace: [Rhino.DocObjects.Custom](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.docobjects.custom.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md)

```cs
public class UnknownUserData : UserData
```

Represents user data with unknown origin.

## Constructors

- [UnknownUserData](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.unknownuserdata/ctor.md): Constructs a new unknown data entity.

## Inherited Members

- From [UserData](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.userdata.md): [Description](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.userdata/description.md), [ShouldWrite](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.userdata/shouldwrite.md), [Transform](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.userdata/transform.md), [Dispose](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.userdata/dispose.md), [OnDuplicate](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.userdata/onduplicate.md), [OnTransform](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.userdata/ontransform.md), [Read](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.userdata/read.md), [Write](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.custom.userdata/write.md)