## UndefinedConstraintHandlingBehavior enumeration

Specifies the behavior used to handle tasks with undefined constraints.

```csharp
public enum UndefinedConstraintHandlingBehavior
```

### Values

| Name | Value | Description |
| --- | --- | --- |
| None | `0` | The default behavior for loading from XER format. No action is taken. A task constraint type is set to 'ConstraintType.Undefined'. |
| SubstituteWithStartNoEarlierThan | `1` | Constraints with type 'ConstraintType.StartNoEarlierThan' and date = Start are added for tasks with 'Undefined' constraint. |

### See Also

* namespace [Aspose.Tasks](../../aspose.tasks/)
* assembly [Aspose.Tasks](../../)