# ChangedTransition

> Describes a single transition that was added, or modified, paired with the categories of changes that affected it.

## Definition

* **Type:** Struct
* **Namespace:** [Unity.GraphToolkit.Editor](/engine/6000.7/script-reference/unity/graphtoolkit/editor.md)
* **Assembly:** UnityEditor

```csharp
public readonly struct ChangedTransition
```

## Remarks

A removed [ITransition](/engine/6000.7/script-reference/unity/graphtoolkit/editor/itransition.md) does not have a matching `ChangedTransition`.

Changes to the rules and conditions carried by a transition are categorized as [ChangeKind.Data](/engine/6000.7/script-reference/unity/graphtoolkit/editor/changekind/data.md) on the transition itself. Read [ITransition.GetRules](/engine/6000.7/script-reference/unity/graphtoolkit/editor/itransition/getrules.md) to find what changed.

For a usage example, see [StateMachineChanges](/engine/6000.7/script-reference/unity/graphtoolkit/editor/statemachinechanges.md).

## Properties

| Property                                                                                                  | Description                                                                                                                                                       |
| --------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [ChangeKinds](/engine/6000.7/script-reference/unity/graphtoolkit/editor/changedtransition/changekinds.md) | The categories of changes that affected this transition, as a set of [ChangeKind](/engine/6000.7/script-reference/unity/graphtoolkit/editor/changekind.md) flags. |
| [ID](/engine/6000.7/script-reference/unity/graphtoolkit/editor/changedtransition/id.md)                   | The unique identifier of the transition.                                                                                                                          |
| [Transition](/engine/6000.7/script-reference/unity/graphtoolkit/editor/changedtransition/transition.md)   | The transition that was modified.                                                                                                                                 |