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The DevExtreme JavaScript Gantt component allows you to validate relationships between tasks and handle errors. Set the enableDependencyValidation property to true to enable task validation.
The Gantt supports the following dependency validation rules:
The Gantt also has the autoUpdateParentTasks property that enables validation for parent-child relationship:
The Gantt processes changes in task values before they are saved to a database. The component displays a popup window with a list of available actions if an error can be handled in several ways.