Angular Scheduler - Current Time Indicator

The Scheduler indicates the current time if you enable the showCurrentTimeIndicator property. Use the indicatorUpdateInterval property to specify how frequently the indicator should change its position.

You can also shade the timetable up to the current time. To enable this feature, set the shadeUntilCurrentTime property to true.

In this example, you can use the controls under the Scheduler to change the above mentioned properties at runtime.

Backend API

<dx-scheduler [dataSource]="appointmentsData" [views]="['week', 'timelineWeek']" currentView="week" [currentDate]="currentDate" [showCurrentTimeIndicator]="showCurrentTimeIndicator" [shadeUntilCurrentTime]="shadeUntilCurrentTime" [indicatorUpdateInterval]="indicatorUpdateInterval" [showAllDayPanel]="false" [height]="600" [editing]="false" appointmentTemplate="appointment-template" (onContentReady)="onContentReady($event)" (onAppointmentClick)="onAppointmentClick($event)" (onAppointmentDblClick)="onAppointmentDblClick($event)" > <dxi-scheduler-resource fieldExpr="movieId" [dataSource]="moviesData"> </dxi-scheduler-resource> <div *dxTemplate="let model of 'appointment-template'"> @if(getMovieById | apply : model.appointmentData.movieId; as movie) { <div class="movie"> <img [src]="movie.image" alt="{{ movie.text }} poster" /> <div class="movie-text">{{ movie.text }}</div> </div> } </div> </dx-scheduler> <div class="options"> <div class="column"> <div class="option"> <div class="label">Current time indicator</div> <div class="value"> <dx-switch [(value)]="showCurrentTimeIndicator" id="show-indicator" ></dx-switch> </div> </div> <div class="option"> <div class="label">Shading until current time</div> <div class="value"> <dx-switch [(value)]="shadeUntilCurrentTime" id="allow-shading" ></dx-switch> </div> </div> </div> <div class="column"> <div class="option"> <div class="label">Update position in</div> <div class="value"> <dx-number-box id="update-interval" (onValueChanged)="changeIndicatorUpdateInterval($event)" [showSpinButtons]="true" [min]="1" [max]="1200" [(value)]="intervalValue" [step]="10" [width]="100" format="#0 s" [inputAttr]="{ 'aria-label': 'Interval' }" > </dx-number-box> </div> </div> </div> </div>

import { bootstrapApplication } from '@angular/platform-browser'; import { ViewChild, Component, enableProdMode, Pipe, PipeTransform, provideZoneChangeDetection } from '@angular/core'; import { DxSchedulerModule, DxSchedulerComponent, DxSwitchModule, DxNumberBoxModule, } from 'devextreme-angular'; import { query as Query } from 'devextreme-angular/common/data'; import { DxSchedulerTypes } from 'devextreme-angular/ui/scheduler'; import { DxNumberBoxTypes } from 'devextreme-angular/ui/number-box'; import { Appointment, Service, MovieData } from './app.service'; @Pipe({ name: 'apply' }) export class ApplyPipe<TArgs, TReturn> implements PipeTransform { transform(func: ((...args: TArgs[]) => TReturn), ...args: TArgs[]): TReturn { return func(...args); } } if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: './app.component.html', styleUrls: ['./app.component.css'], providers: [Service], preserveWhitespaces: true, imports: [ DxSchedulerModule, DxSwitchModule, DxNumberBoxModule, ApplyPipe, ], }) export class AppComponent { @ViewChild(DxSchedulerComponent, { static: false }) scheduler: DxSchedulerComponent; appointmentsData: Appointment[]; moviesData: MovieData[]; currentDate: Date = new Date(); showCurrentTimeIndicator = true; shadeUntilCurrentTime = true; intervalValue = 10; indicatorUpdateInterval = 10000; constructor(service: Service) { this.appointmentsData = service.getAppointments(); this.moviesData = service.getMoviesData(); } onContentReady = (e: DxSchedulerTypes.ContentReadyEvent) => { e.component.scrollTo(new Date()); }; onAppointmentClick = (e: DxSchedulerTypes.AppointmentClickEvent) => { e.cancel = true; }; onAppointmentDblClick = (e: DxSchedulerTypes.AppointmentDblClickEvent) => { e.cancel = true; }; changeIndicatorUpdateInterval = (e: DxNumberBoxTypes.ValueChangedEvent) => { this.indicatorUpdateInterval = e.value * 1000; }; getMovieById = (id: string | number) => Query(this.moviesData).filter(['id', '=', id]).toArray()[0] as MovieData; } bootstrapApplication(AppComponent, { providers: [ provideZoneChangeDetection({ eventCoalescing: true, runCoalescing: true }), ], });

::ng-deep .dx-scheduler-timeline .dx-scheduler-cell-sizes-horizontal { width: 100px; } ::ng-deep .dx-scheduler-appointment { color: #000; font-weight: 500; background-color: #e4e4e4; } ::ng-deep .dx-scheduler-appointment-recurrence .dx-scheduler-appointment-content { padding: 5px 0 5px 7px; } .options { background-color: rgba(191, 191, 191, 0.15); margin-top: 20px; display: flex; align-items: flex-start; } ::ng-deep .column { width: 40%; display: inline-block; margin: 15px 3%; text-align: left; vertical-align: top; } .option { padding: 5px 0; display: flex; align-items: center; } ::ng-deep .label, .value { display: inline-block; vertical-align: middle; } .label { width: 180px; } ::ng-deep .value { width: 30%; } ::ng-deep .movie img { height: 70px; } ::ng-deep .movie-text { font-size: 90%; white-space: normal; } ::ng-deep #allow-shading, #show-indicator { height: 36px; }

import { Injectable } from '@angular/core'; export class Appointment { startDate: Date; endDate: Date; movieId: number; recurrenceRule?: string; } export class MovieData { id: number; text: string; image: string; } const today = new Date(); today.setHours(0, 0, 0, 0); today.setDate(today.getDate() - today.getDay() + 3); const appointments: Appointment[] = [ { movieId: 1, startDate: new Date(today.getTime() - 113.5 * 3600000), endDate: new Date(today.getTime() - 111.5 * 3600000), recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15', }, { movieId: 2, startDate: new Date(today.getTime() - 110.5 * 3600000), endDate: new Date(today.getTime() - 108.5 * 3600000), recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15', }, { movieId: 3, startDate: new Date(today.getTime() - 106.5 * 3600000), endDate: new Date(today.getTime() - 104.5 * 3600000), recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15', }, { movieId: 4, startDate: new Date(today.getTime() - 104 * 3600000), endDate: new Date(today.getTime() - 102 * 3600000), recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15', }, { movieId: 5, startDate: new Date(today.getTime() - 101 * 3600000), endDate: new Date(today.getTime() - 99 * 3600000), recurrenceRule: 'FREQ=HOURLY;INTERVAL=15;COUNT=15', }, ]; const moviesData: MovieData[] = [{ id: 1, text: 'His Girl Friday', image: '../../../../images/movies/HisGirlFriday.jpg', }, { id: 2, text: 'Royal Wedding', image: '../../../../images/movies/RoyalWedding.jpg', }, { id: 3, text: 'A Star Is Born', image: '../../../../images/movies/AStarIsBorn.jpg', }, { id: 4, text: 'The Screaming Skull', image: '../../../../images/movies/ScreamingSkull.jpg', }, { id: 5, text: "It's a Wonderful Life", image: '../../../../images/movies/ItsAWonderfulLife.jpg', }]; @Injectable() export class Service { getAppointments(): Appointment[] { return appointments; } getMoviesData(): MovieData[] { return moviesData; } }

<!DOCTYPE html> <html lang="en"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/26.1.5/css/dx.light.css" /> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> <script src="https://cdn.jsdelivr.net/npm/zone.js@0.16.2/bundles/zone.umd.js"></script> <script src="./bundle.js" type="module"></script> </body> </html>