Bulk Actions

Multiple event selection can be turned on with the selectMultipleEvents option. Selecting multiple events can be done through user interaction with CTRL/SHIFT/CMD + click or programmatically eg. click of a button or 'select all' checkbox.

Bulk operations like delete, update can be applied the selected events. Things like deleting with the backspace or delete buttons work out of the box but custom actions can be also applied. The selection can be easily retrieved and updated with the selectedEvents option and the onSelectedEventsChange event.

Custom actions can be performed with external buttons or with context menu activated on right-click.

Interested in moving events between two separate calendars?  Check out the next example for cut, copy, paste events →
Get started with this example

Demo

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Multi-select events by keyboard in a calendar - bulk delete, update, or run custom actions via action panel or right-click context menu.

Code

View code on GitHub 
import { Button, Confirm, Eventcalendar, formatDate, getJson, Page, Select, setOptions, Toast  } from '@mobiscroll/react';
import { useCallback, useEffect, useMemo, useRef, useState } from 'react';

setOptions({
  locale:  ,
  theme: ' ',
  themeVariant: ' '
});

function App() {
  const [myEvents, setMyEvents] = useState([]);
  const [mySelectedEvents, setSelectedEvents] = useState([]);
  const [firstDay, setFirstDay] = useState();
  const [lastDay, setLastDay] = useState();
  const [menuAnchor, setMenuAnchor] = useState();
  const [menuOpen, setMenuOpen] = useState(false);
  const [selectedValue, setSelected] = useState(false);
  const [confirmOpen, setConfirmOpen] = useState(false);
  const [toastOpen, setToastOpen] = useState(false);
  const [confirmMessage, setConfirmMessage] = useState('');
  const [toastMessage, setToastMessage] = useState('');

  const calRef = useRef();

  const view = useMemo(() => ({ calendar: { labels: 'all' } }), []);

  const selectData = useMemo(
    () => [
      { text: 'Update', value: 'update' },
      { text: 'Delete', value: 'delete' },
    ],
    [],
  );

  const deleteSelectedEvents = useCallback(() => {
    setConfirmMessage(mySelectedEvents.map((e) => e.title).join(', '));
    setConfirmOpen(true);
  }, [mySelectedEvents]);

  const updateSelectedEvents = useCallback(() => {
    const events = mySelectedEvents.length === 0 ? [mySelectedEvents] : mySelectedEvents;
    let eventsToUpdate = [...myEvents];

    for (const event of events) {
      if (event.recurring) {
        const origEvent = eventsToUpdate.find((x) => x.id === event.original.id);
        const newEvent = {
          ...event,
          recurring: undefined,
          color: 'orange',
          id: event.id + '_' + formatDate('YYYY-MM-DD', event.start),
        };
        eventsToUpdate = [...eventsToUpdate, newEvent];
        const updatedOrigEvent = {
          ...origEvent,
          recurringException: [...(origEvent.recurringException || []), event.start],
        };
        const index = eventsToUpdate.findIndex((x) => x.id === origEvent.id);
        eventsToUpdate.splice(index, 1, updatedOrigEvent);
      } else {
        const newEv = { ...event };
        newEv.color = 'orange';
        const index = eventsToUpdate.findIndex((x) => x.id === newEv.id);
        eventsToUpdate.splice(index, 1, newEv);
      }
    }

    setToastMessage("All selected event's color changed to orange");
    setToastOpen(true);
    setMyEvents(eventsToUpdate);
    setSelectedEvents([]);
  }, [myEvents, mySelectedEvents]);

  const handleToastClose = useCallback(() => {
    setToastOpen(false);
  }, []);

  const handleConfirmClose = useCallback(
    (result) => {
      if (result) {
        let eventsToUpdate = [...myEvents];

        for (const event of mySelectedEvents) {
          if (event.recurring) {
            const origEvent = eventsToUpdate.find((x) => x.id === event.original.id);
            const updatedOrigEvent = {
              ...origEvent,
              recurringException: [...(origEvent.recurringException || []), event.start],
            };
            const index = eventsToUpdate.findIndex((x) => x.id === origEvent.id);
            eventsToUpdate.splice(index, 1, updatedOrigEvent);
          } else {
            eventsToUpdate = eventsToUpdate.filter((ev) => ev.id !== event.id);
          }
        }

        setMyEvents(eventsToUpdate);
        setSelectedEvents([]);
        setToastMessage('Deleted');
        setToastOpen(true);
      }
      setConfirmOpen(false);
    },
    [myEvents, mySelectedEvents],
  );

  const handleEventUpdate = useCallback(
    (args) => {
      if (args.isDelete) {
        if (!confirmOpen) {
          deleteSelectedEvents();
        }
        return false;
      }
    },
    [confirmOpen, deleteSelectedEvents],
  );

  const handleEventDelete = useCallback(() => {
    if (!confirmOpen) {
      deleteSelectedEvents();
      return false;
    }
  }, [confirmOpen, deleteSelectedEvents]);

  const handlePageLoading = useCallback((args) => {
    setTimeout(() => {
      setFirstDay(args.firstDay);
      setLastDay(args.lastDay);
    });
  }, []);

  const handleSelectedEventsChange = useCallback((args) => {
    setSelectedEvents(args.events);
  }, []);

  const handleEventRightClick = useCallback((args) => {
    args.domEvent.preventDefault();
    setMenuAnchor(args.domEvent.target);
    setTimeout(() => {
      setMenuOpen(true);
    });
  }, []);

  const selectAllEvents = useCallback(() => {
    const selectedEvents = calRef.current.getEvents(firstDay, lastDay);
    setSelectedEvents(selectedEvents);
    setToastMessage('All events selected from view');
    setToastOpen(true);
  }, [firstDay, lastDay]);

  const resetSelection = useCallback(() => {
    setSelectedEvents([]);
    setToastMessage('Selection cleared');
    setToastOpen(true);
  }, []);

  const handleSelectChange = useCallback(
    (args) => {
      setSelected(args.value);
      if (args.value === 'update') {
        updateSelectedEvents();
      } else if (args.value === 'delete') {
        deleteSelectedEvents();
      }
    },
    [deleteSelectedEvents, updateSelectedEvents],
  );

  const handleSelectClose = useCallback(() => {
    setSelected('');
    setMenuOpen(false);
  }, []);

  const handleDeleteKey = useCallback(
    (ev) => {
      if (!confirmOpen && (ev.keyCode === 8 || ev.keyCode === 46)) {
        deleteSelectedEvents();
      }
    },
    [confirmOpen, deleteSelectedEvents],
  );

  useEffect(() => {
    getJson(
      'https://trial.mobiscroll.com/events/?vers=5',
      (events) => {
        setMyEvents(events);
      },
      'jsonp',
    );
  }, []);

  return (
    <Page className="md-bulk-operations">
      <div className="mbsc-grid mbsc-no-padding" onKeyDown={handleDeleteKey}>
        <div className="mbsc-row">
          <div className="mbsc-col-sm-9 mbsc-push-sm-3">
            <Eventcalendar
              className="md-bulk-operations-border"
              ref={calRef}
              clickToCreate={ }
              dragToCreate={ }
              dragToMove={ }
              dragToResize={ }
              eventDelete={ }
              data={myEvents}
              view={view}
              selectMultipleEvents={true}
              selectedEvents={mySelectedEvents}
              onEventDelete={handleEventDelete}
              onEventUpdate={handleEventUpdate}
              onEventRightClick={handleEventRightClick}
              onPageLoading={handlePageLoading}
              onSelectedEventsChange={handleSelectedEventsChange}
            />
            <Select
              inputProps={{ type: 'hidden' }}
              display="anchored"
              touchUi={false}
              anchor={menuAnchor}
              data={selectData}
              value={selectedValue}
              isOpen={menuOpen}
              onChange={handleSelectChange}
              onClose={handleSelectClose}
            />
          </div>
          <div className="mbsc-col-sm-3 mbsc-pull-sm-9">
            <div className="mbsc-form-group">
              <div className="mbsc-button-group-block">
                <Button onClick={selectAllEvents}>Select all this month</Button>
                <Button onClick={resetSelection}>Reset selection</Button>
                <Button onClick={updateSelectedEvents}>Update selected</Button>
              </div>
            </div>
            <div className="mbsc-form-group-title">Currently selected</div>
            <div className="mbsc-padding md-selected-event-list">
              <ul>
                {mySelectedEvents.map((e, i) => (
                  <li key={i}>{e.title}</li>
                ))}
              </ul>
            </div>
          </div>
        </div>
      </div>
      <Confirm
        isOpen={confirmOpen}
        title="Are you sure you want to delete the following events?"
        message={confirmMessage}
        okText="Delete"
        onClose={handleConfirmClose}
      />
      <Toast isOpen={toastOpen} message={toastMessage} onClose={handleToastClose} />
    </Page>
  );
}

export default App;

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