# eventTypeId

> Retrieves the type ID for this event instance.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.UIElements](/engine/6000.5/script-reference/unityengine/uielements.md)
* **Assembly:** UnityEngine.UIElementsModule

```csharp
public virtual long eventTypeId { get; }
```

### Remarks

This property provides an alternative to the `is` operator for checking whether a given event is of the expected type on platforms or build settings where that operator has performance overhead.