# BindingActivationContext

> Contains information passed to binding instances during registration and deregistration.

## Definition

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

```csharp
public readonly struct BindingActivationContext
```

## Properties

| Property                                                                                                          | Description                                 |
| ----------------------------------------------------------------------------------------------------------------- | ------------------------------------------- |
| [bindingId](/engine/6000.6/script-reference/unityengine/uielements/bindingactivationcontext/bindingid.md)         | The binding id being activated/deactivated. |
| [targetElement](/engine/6000.6/script-reference/unityengine/uielements/bindingactivationcontext/targetelement.md) | The target element of the binding.          |