# OnClientTimeSlotContextMenuItemClicking

The **OnClientTimeSlotContextMenuItemClicking** client-side event is called when a time slotcontext menu item is clicked, before RadScheduler processes the click event.

Two parameters are passed to the event handler:

* **sender** is the scheduler client object.

* **eventArgs** has the following methods:

  * **get_slot()** - the instance of the time slot, on which the context menu was shown.

  * **get_startSlot()** - the instance of the first time slot in the slot selection.

  * **get_endSlot()** - the instance of the last time slot in the slot selection.

  * **get_item()** - the clicked menu item

  * **set_cancel()** - used to cancel the event.

This event can be cancelled.