Client options

Preserve the exact duration when crossing all-day/timed surfaces.

Show the all-day row in day and week views. Defaults to true.

Text displayed for the all-day row. Defaults to `All day`.

Width-to-content-height ratio used when no explicit height is set.

Global background-event color.

Controls the optional "Powered by WTS Calendar" documentation link.

Visually marks business and non-business time. `true` uses Monday-Friday, 09:00-17:00. Set to false to disable the display.

Adds application CSS classes to the button. Define the CSS in your application; this hook does not create styles.

Controls whether toolbar buttons show text, icons, or both.

Adds application CSS classes to the button group. Define the CSS in your application; this hook does not create styles.

Accessible labels for built-in actions, views, and custom buttons.

v7-style definitions that can add or override any toolbar button.

Visible labels for built-in actions, views, and custom buttons.

Light/dark palette selection; `auto` follows the OS preference.

Accessible column resizing for resource-based views.

The existing DOM element into which the calendar mounts. Framework wrappers supply this element for you.

Height of the active view body, excluding toolbars.

Application-defined toolbar actions referenced by name in a toolbar.

Legacy construction-time header customization. Expand the nested type before using its header element or ordering settings.

Called when a date or time cell is activated without range selection.

Resolves skipped or repeated wall-clock times at DST boundaries. Defaults to the Temporal-compatible behavior.

Places date headings above resource headings in vertical resource views.

Called after the initial visible range and every subsequent range change.

Adds application CSS classes to the day cell. Define the CSS in your application; this hook does not create styles.

Customizes the content rendered in the day cell. Check the linked return type for supported text or DOM-node values.

Runs after the day cell is mounted. Use the callback payload to attach application behavior to that rendered element.

Runs before the day cell is removed. Clean up listeners and application resources attached during its mount callback.

Adds application CSS classes to the day header. Define the CSS in your application; this hook does not create styles.

Customizes the content rendered in the day header. Check the linked return type for supported text or DOM-node values.

Runs after the day header is mounted. Use the callback payload to attach application behavior to that rendered element.