# userData

> User-provided identifier set at draw time via the userData parameter of APIs such as DrawMesh.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.UIElements](/engine/6000.6/script-reference/unityengine/uielements.md)
* **Assembly:** UnityEngine.UIElementsModule

```csharp
public int userData { get; }
```

### Remarks

Defaults to `0` for draws made without an explicit userData.