# PackedComponentDataChange

> Represents a packed component data change within a EntityChangeSet

## Definition

* **Type:** Struct
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

```csharp
public struct PackedComponentDataChange
```

## Fields

| Value                                                                                              | Description                                                                                                                                                                           |
| -------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [Component](/engine/7000.0/script-reference/unity/entities/packedcomponentdatachange/component.md) | The entity and component this change is targeted.                                                                                                                                     |
| [Enabled](/engine/7000.0/script-reference/unity/entities/packedcomponentdatachange/enabled.md)     | If this component has a enable bit change. -1 = no change, 0 = false, 1 = true                                                                                                        |
| [Offset](/engine/7000.0/script-reference/unity/entities/packedcomponentdatachange/offset.md)       | The start offset for this data change.                                                                                                                                                |
| [Size](/engine/7000.0/script-reference/unity/entities/packedcomponentdatachange/size.md)           | The size of this data change. This is be the size in [EntityChangeSet.ComponentData](/engine/7000.0/script-reference/unity/entities/entitychangeset/componentdata.md) for this entry. |