# BindablePropertyChangedEventArgs(in BindingId)

> Instantiates a new BindablePropertyChangedEventArgs.

## Definition

* **Type:** Constructor
* **Namespace:** [UnityEngine.UIElements](/engine/6000.3/script-reference/unityengine/uielements.md)
* **Assembly:** UnityEngine.UIElementsModule

## BindablePropertyChangedEventArgs(BindingId)

```csharp
public BindablePropertyChangedEventArgs(in BindingId propertyName)
```

### Parameters

**** (\[BindingId]\(/engine/6000.3/script-reference/unityengine/uielements/bindingid)): The name of the property that has changed.