Scheduler for DevExtreme - How to disable dates in the timeline view
May 30, 2026 ยท View on GitHub
This example demonstrates how to create a scheduler with disabled dates in the timeline view.
The main idea is to validate the process of adding and updating appointments with the onAppointmentFormOpening, onAppointmentAdding, and onAppointmentUpdating handlers. To visually highlight cells that cannot be edited, set a function for the dataCellTemplate property. This function will affect the appointment customization.

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