# HasBubbleUpHandlers()

> Returns true if event handlers for the event propagation BubbleUp phase, have been attached to this object.

## Definition

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

```csharp
bool HasBubbleUpHandlers()
```

### Returns

| Type                                                          | Description                                                   |
| ------------------------------------------------------------- | ------------------------------------------------------------- |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | True if the object has event handlers for the BubbleUp phase. |