React Scheduler Methods

Options to be applied.

defaultOptions is a static method that the UI component class supports. The following code demonstrates how to specify default properties for all instances of the Scheduler UI component in an application executed on the desktop.

jQuery

JavaScript

DevExpress.ui.dxScheduler.defaultOptions({ 
    device: { deviceType: "desktop" },
    options: {
        // Here go the Scheduler properties
    }
});

Angular

TypeScript

import Scheduler, { Properties } from "devextreme/ui/scheduler";
// ...
export class AppComponent {
    constructor () {
        Scheduler.defaultOptions<Properties>({
            device: { deviceType: "desktop" },
            options: {
                // Here go the Scheduler properties
            }
        });
    }
}

Vue

<template>
    <div>
        <DxScheduler id="scheduler1" />
        <DxScheduler id="scheduler2" />
    </div>
</template>
<script>
import DxScheduler from "devextreme-vue/scheduler";
import Scheduler from "devextreme/ui/scheduler";

Scheduler.defaultOptions({
    device: { deviceType: "desktop" },
    options: {
        // Here go the Scheduler properties
    }
});

export default {
    components: {
        DxScheduler
    }
}
</script>

React

import dxScheduler from "devextreme/ui/scheduler";
import Scheduler from "devextreme-react/scheduler";

dxScheduler.defaultOptions({
    device: { deviceType: "desktop" },
    options: {
        // Here go the Scheduler properties
    }
});

export default function App() {
    return (
        <div>
            <Scheduler id="scheduler1" />
            <Scheduler id="scheduler2" />
        </div>
    )
}

You can also set rules for multiple device types:

jQuery

JavaScript

const devicesConfig = [
    { deviceType: 'desktop' },
    { deviceType: 'tablet' },
    { deviceType: 'phone' },
];

devicesConfig.forEach(deviceConfig => {
    DevExpress.ui.dxScheduler.defaultOptions({ 
        device: deviceConfig,
        options: {
            // Here go the Scheduler properties
        }
    });
});

Angular

TypeScript

import Scheduler, { Properties } from "devextreme/ui/scheduler";
// ...
export class AppComponent {
    constructor () {
        const devicesConfig = [
            { deviceType: 'desktop' },
            { deviceType: 'tablet' },
            { deviceType: 'phone' },
        ];

        devicesConfig.forEach(deviceConfig => {
            Scheduler.defaultOptions<Properties>({
                device: deviceConfig,
                options: {
                    // Here go the Scheduler properties
                }
            });
        });
    }
}

Vue

<template>
    <div>
        <DxScheduler />
    </div>
</template>
<script>
import DxScheduler from "devextreme-vue/scheduler";
import Scheduler from "devextreme/ui/scheduler";

const devicesConfig = [
    { deviceType: 'desktop' },
    { deviceType: 'tablet' },
    { deviceType: 'phone' },
];

devicesConfig.forEach(deviceConfig => {
    Scheduler.defaultOptions({
        device: deviceConfig,
        options: {
            // Here go the Scheduler properties
        }
    });
});

export default {
    components: {
        DxScheduler
    }
}
</script>

React

import dxScheduler from "devextreme/ui/scheduler";
import Scheduler from "devextreme-react/scheduler";

const devicesConfig = [
    { deviceType: 'desktop' },
    { deviceType: 'tablet' },
    { deviceType: 'phone' },
];

devicesConfig.forEach(deviceConfig => {
    dxScheduler.defaultOptions({
        device: deviceConfig,
        options: {
            // Here go the Scheduler properties
        }
    });
});

export default function App() {
    return (
        <div>
            <Scheduler />
        </div>
    )
}

deleteAppointment(appointment)

Deletes an appointment from the timetable and its object from the data source.

Parameters:

appointment:

An appointment object from the dataSource.

View Demo

If you delete a recurring appointment from the data source, all its occurrences are also deleted from the timetable:

jQuery

JavaScript

$(function() {
    var appointments = [{
        text: "Website Re-Design Plan",
        startDate: new Date(2018, 4, 25, 9, 00),
        endDate: new Date(2018, 4, 25, 9, 30),
        recurrenceRule: "FREQ=DAILY;COUNT=10"
    }, 
    // ...
    ];

    var scheduler = $("#schedulerContainer").dxScheduler({
        dataSource: appointments,
        currentDate: new Date(2018, 4, 25)
    }).dxScheduler("instance");

    $("#deleteButton").dxButton({
        text: "Delete",
        onClick: function () {
            scheduler.deleteAppointment(appointments[0]);
        }
    });
});

Angular

app.component.html

app.component.ts

app.service.ts

app.module.ts

<dx-button
    text="Delete"
    (onClick)="deleteAppointment()">
</dx-button>
<dx-scheduler
    [(dataSource)]="appointments"
    [currentDate]="currentDate">
</dx-scheduler>

import { Component, ViewChild } from "@angular/core";
import { Appointment, Service } from './app.service';
import { DxSchedulerComponent } from "devextreme-angular";
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent  {
    @ViewChild(DxSchedulerComponent, { static: false }) scheduler: DxSchedulerComponent;
    // Prior to Angular 8
    // @ViewChild(DxSchedulerComponent) scheduler: DxSchedulerComponent;
    currentDate: Date = new Date(2018, 4, 25);
    appointments: Appointment[];

    constructor(service: Service) {
        this.appointments = service.getAppointments();
    }

    deleteAppointment() {
        this.scheduler.instance.deleteAppointment(this.appointments[0]);
    }
}

import { Injectable } from "@angular/core";

export class Appointment {
    text: string;
    startDate: Date;
    endDate: Date;
    recurrenceRule?: string;
}

let appointments: Appointment[] = [{
    text: "Website Re-Design Plan",
    startDate: new Date(2018, 4, 25, 9, 0),
    endDate: new Date(2018, 4, 25, 9, 30),
    recurrenceRule: "FREQ=DAILY;COUNT=10"
}, 
// ...
];

@Injectable()
export class Service {
    getAppointments(): Appointment[] {
        return appointments;
    }
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { 
    DxButtonModule, 
    DxSchedulerModule
} from "devextreme-angular";

import { Service } from './app.service';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxButtonModule,
        DxSchedulerModule
    ],
    providers: [
        Service
    ],
    bootstrap: [AppComponent]
})
export class AppModule { }

Vue

App.vue

data.js

<template>
    <div>
        <DxButton 
            text="Delete" 
            @click="deleteAppointment" />
        <DxScheduler :ref="schedulerRef"
            :data-source="dataSource"
            :current-date="currentDate" />
    </div>
</template>
<script>
import 'devextreme/dist/css/dx.light.css';

import DxScheduler from 'devextreme-vue/scheduler';
import DxButton from 'devextreme-vue/button';
import { appointments } from './data.js';

const schedulerRef = "scheduler";

export default {
    components: {
        DxScheduler,
        DxButton
    },
    data() {
        return {
            schedulerRef,
            currentDate: new Date(2018, 4, 25),
            dataSource: appointments
        };
    },
    methods: {
        deleteAppointment() {
            this.scheduler.deleteAppointment(appointments[0]);
        } 
    },
    computed: {
        scheduler: function() {
            return this.$refs[schedulerRef].instance;
        }
    }
};
</script>

export const appointments = [{
    text: "Website Re-Design Plan",
    startDate: new Date(2018, 4, 25, 9, 0),
    endDate: new Date(2018, 4, 25, 9, 30),
    recurrenceRule: "FREQ=DAILY;COUNT=10"
}, 
// ...
];

React

App.js

data.js

import React from 'react';
import 'devextreme/dist/css/dx.light.css';
import Scheduler from 'devextreme-react/scheduler';
import Button from 'devextreme-react/button';
import { appointments } from './data.js';

const currentDate = new Date(2018, 4, 25);

class App extends React.Component {
    constructor(props) {
        super(props);

        this.schedulerRef = React.createRef();

        this.deleteAppointment = () => {
            this.scheduler.deleteAppointment(appointments[0]);
        }
    }

    get scheduler() {
        return this.schedulerRef.current.instance;
    }

    render() {
        return (
            <div>
                <Button text="Delete" onClick={this.deleteAppointment} />
                <Scheduler ref={this.schedulerRef}
                    dataSource={appointments}
                    defaultCurrentDate={currentDate} />
            </div>
        );
    }
}
export default App;

export const appointments = [{
    text: "Website Re-Design Plan",
    startDate: new Date(2018, 4, 25, 9, 0),
    endDate: new Date(2018, 4, 25, 9, 30),
    recurrenceRule: "FREQ=DAILY;COUNT=10"
}, 
// ...
];

jQuery

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Angular

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Vue

Call Methods

React

Call Methods

deleteRecurrence(appointment, date, recurrenceEditMode)

Deletes a recurring appointment occurrence.

Parameters:

appointmentData:

The initial appointment.

date:

|

A date for which to delete a recurrence.

recurrenceEditMode:

RecurrenceEditMode

An edit mode for recurring appointments.

jQuery

index.js

$(function() {
    const appointments = [{
        text: "Website Re-Design Plan",
        startDate: new Date(2018, 4, 25, 9, 00),
        endDate: new Date(2018, 4, 25, 9, 30),
        recurrenceRule: "FREQ=DAILY;COUNT=10"
    }, 
    // ...
    ];

    const scheduler = $("#schedulerContainer").dxScheduler({
        dataSource: appointments,
        // ...
        onAppointmentClick: function(e) {
            if (condition){
                e.component.deleteRecurrence(e.appointmentData, e.targetedAppointmentData.startDate, 'occurrence');
            }
        }
    }).dxScheduler("instance");
});

Angular

app.component.html

app.component.ts

app.service.ts

app.module.ts

<dx-scheduler ...
    [dataSource]="appointments"
    (onAppointmentClick)="deleteRecurrence($event)">
</dx-scheduler>

import { Component } from "@angular/core";
import { Appointment, Service } from './app.service';
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent  {
    appointments: Appointment[];

    constructor(service: Service) {
        this.appointments = service.getAppointments();
    }

    deleteAppointment(e) {
        e.component.deleteRecurrence(e.appointmentData, e.targetedAppointmentData.startDate, 'occurrence');
    }
}

import { Injectable } from "@angular/core";

export class Appointment {
    text: string;
    startDate: Date;
    endDate: Date;
    recurrenceRule?: string;
}

let appointments: Appointment[] = [{
    text: "Website Re-Design Plan",
    startDate: new Date(2018, 4, 25, 9, 0),
    endDate: new Date(2018, 4, 25, 9, 30),
    recurrenceRule: "FREQ=DAILY;COUNT=10"
}, 
// ...
];

@Injectable()
export class Service {
    getAppointments(): Appointment[] {
        return appointments;
    }
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxSchedulerModule } from "devextreme-angular";

import { Service } from './app.service';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxSchedulerModule
    ],
    providers: [
        Service
    ],
    bootstrap: [AppComponent]
})
export class AppModule { }

Vue

App.vue

data.js

<template>
    <DxScheduler ...
        :data-source="dataSource"
        @appointment-click="deleteRecurrence"
    />
</template>

<script>
import 'devextreme/dist/css/dx.light.css';
import DxScheduler from 'devextreme-vue/scheduler';
import { appointments } from './data.js';

export default {
    components: {
        DxScheduler
    },
    data() {
        return {
            dataSource: appointments
        };
    },
    methods: {
        deleteRecurrence(e) {
            e.component.deleteRecurrence(e.appointmentData, e.targetedAppointmentData.startDate, 'occurrence');
        } 
    }
};
</script>

export const appointments = [{
    text: "Website Re-Design Plan",
    startDate: new Date(2018, 4, 25, 9, 0),
    endDate: new Date(2018, 4, 25, 9, 30),
    recurrenceRule: "FREQ=DAILY;COUNT=10"
}, 
// ...
];

React

App.js

data.js

import React, { useCallback } from 'react';
import Scheduler from 'devextreme-react/scheduler';
import { appointments } from './data.js';

function App() {
    const deleteRecurrence = useCallback((e) => { 
        e.component.deleteRecurrence(e.appointmentData, e.targetedAppointmentData.startDate, 'occurrence');
    }, []);

    return (
        <Scheduler ...
            dataSource={appointments}
            onAppointmentClick={deleteRecurrence} 
        />
    );
}

export default App;

export const appointments = [{
    text: "Website Re-Design Plan",
    startDate: new Date(2018, 4, 25, 9, 0),
    endDate: new Date(2018, 4, 25, 9, 30),
    recurrenceRule: "FREQ=DAILY;COUNT=10"
}, 
// ...
];

dispose()

Disposes of all the resources allocated to the Scheduler instance.

jQuery

After calling this method, remove the DOM element associated with the UI component:

JavaScript

$("#myScheduler").dxScheduler("dispose");
$("#myScheduler").remove();

Angular

Use conditional rendering instead of this method:

app.component.html

<dx-scheduler ...
    *ngIf="condition">
</dx-scheduler>

Vue

Use conditional rendering instead of this method:

App.vue

<template>
    <DxScheduler ...
        v-if="condition">
    </DxScheduler>
</template>

<script>
import DxScheduler from 'devextreme-vue/scheduler';

export default {
    components: {
        DxScheduler
    }
}
</script>

React

Use conditional rendering instead of this method:

App.js

import React from 'react';

import Scheduler from 'devextreme-react/scheduler';

function DxScheduler(props) {
    if (!props.shouldRender) {
        return null;
    }

    return (
        <Scheduler ... >    
        </Scheduler>
    );
}

class App extends React.Component {
    render() {
        return (
            <DxScheduler shouldRender="condition" />
        );
    }
}
export default App;

element()

Gets the root UI component element.

Return Value:

HTMLElement | jQuery

An HTML element or a jQuery element when you use jQuery.

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endUpdate()

Refreshes the UI component after a call of the beginUpdate() method.

The beginUpdate() and endUpdate() methods reduce the number of renders in cases where extra rendering can negatively affect performance.

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focus()

Sets focus on the UI component.

jQuery

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getDataSource()

Gets the DataSource instance.

Return Value:

DataSource

The DataSource instance.

NOTE

This method returns the DataSource instance even if the UI component's dataSource property was given a simple array.

View on GitHub

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getEndViewDate()

Gets the current view's end date.

Return Value:

The view's end date.

jQuery

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getInstance(element)

Gets the instance of a UI component found using its DOM node.

Parameters:

element:

Element

|

jQuery

The UI component's container.

Return Value:

The UI component's instance.

getInstance is a static method that the UI component class supports. The following code demonstrates how to get the Scheduler instance found in an element with the myScheduler ID:

// Modular approach
import Scheduler from "devextreme/ui/scheduler";
...
let element = document.getElementById("myScheduler");
let instance = Scheduler.getInstance(element) as Scheduler;

// Non-modular approach
let element = document.getElementById("myScheduler");
let instance = DevExpress.ui.dxScheduler.getInstance(element);

getStartViewDate()

Gets the current view's start date.

Return Value:

The view's start date.

jQuery

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hideAppointmentPopup(saveChanges)

Hides an appointment details form.

Parameters:

saveChanges:

Boolean

| undefined

Specifies whether to save changes.

jQuery

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Vue

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React

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hideAppointmentTooltip()

Hides an appointment's or cell overflow indicator's tooltip.

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instance()

Gets the UI component's instance. Use it to access other methods of the UI component.

Return Value:

This UI component's instance.

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off(eventName)

Detaches all event handlers from a single event.

Parameters:

eventName:

The event's name.

Return Value:

The object for which this method is called.

jQuery

Handle Events

Angular

Event Handling

Vue

Event Handling

React

Event Handling

off(eventName, eventHandler)

Detaches a particular event handler from a single event.

Parameters:

eventName:

The event's name.

eventHandler:

Function

The event's handler.

Return Value:

The object for which this method is called.

jQuery

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Event Handling

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Event Handling

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Event Handling

on(eventName, eventHandler)

Subscribes to an event.

Parameters:

eventName:

The event's name.

eventHandler:

Function

The event's handler.

Return Value:

The object for which this method is called.

Use this method to subscribe to one of the events listed in the Events section.

jQuery

Handle Events

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Event Handling

Vue

Event Handling

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Event Handling

on(events)

Subscribes to events.

Parameters:

events:

Events with their handlers: { "eventName1": handler1, "eventName2": handler2, ...}

Return Value:

The object for which this method is called.

Use this method to subscribe to several events with one method call. Available events are listed in the Events section.

jQuery

Handle Events

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Event Handling

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Event Handling

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Event Handling

option()

Gets all UI component properties.

Return Value:

The UI component's properties.

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option(optionName)

Gets the value of a single property.

Parameters:

optionName:

The property's name or full path.

Return Value: any

This property's value.

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option(optionName, optionValue)

Updates the value of a single property.

Parameters:

optionName:

The property's name or full path.

optionValue: any

This property's new value.

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option(options)

Updates the values of several properties.

Parameters:

options:

Options with their new values.

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repaint()

Renders the component again without reloading data. Use the method to update the component's markup and appearance dynamically.

Use the DataSource reload method to reload data in Scheduler. To get a DataSource, you can call the getDataSource() method. Change the dataSource property of the corresponding resources item if you need to update resource data.

resetOption(optionName)

Resets a property to its default value.

Parameters:

optionName:

A property's name.

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scrollTo(date, group, allDay)

Scrolls the current view to a specified position. Available for all views except "agenda". You should specify the height property to use this method.

Parameters:

date:

A date and time to which to scroll.

group:

| undefined

If appointments are grouped by resources, specifies a group ID (optional).

allDay:

Boolean

| undefined

If true, scrolls the view to the all-day panel of the specified group. Applies only if the all-day panel is visible.

The following example shows how to use this method:

// Scroll to January 14, 2021
scrollTo(new Date(2021, 0, 14));
// Scroll to the second group at 5:30 p.m. on January 14, 2021
scrollTo(new Date(2021, 0, 14, 17, 30), {groupId: 2})
// Scroll to the all-day panel of the second group
scrollTo(new Date(2021, 0, 14, 17, 30), {groupId: 2}, true);

NOTE

If you need to navigate to a date outside the current view, use the currentDate property instead.

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scrollToTime(hours, minutes, date)

Use the scrollTo(dategroupallDay) method instead.

Scrolls the current view to a specific day and time.

Parameters:

hours:

Number

An hour component.

minutes:

Number

A minute component.

date:

| undefined

A date component.

If the specified date is outside the current date range, the method scrolls the view to the specified time.

NOTE

This method requires that the markup is already rendered. To scroll the Scheduler at launch, call this method in the onContentReady function.

NOTE

This method does not work in the month view.

jQuery

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showAppointmentPopup(appointmentData, createNewAppointment, currentAppointmentData)

Shows the appointment details form.

Parameters:

appointmentData:

| undefined

The initial appointment.

createNewAppointment:

Boolean

| undefined

Specifies whether a new appointment is created when editing is finished.

currentAppointmentData: