Angular Data Grid - Multiple Record Selection API

import { bootstrapApplication } from '@angular/platform-browser'; import { Component, Pipe, PipeTransform, enableProdMode, provideZoneChangeDetection } from '@angular/core'; import { DxDataGridModule, DxButtonModule, DxSelectBoxModule } from 'devextreme-angular'; import { Service, Employee } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Pipe({ name: 'stringifyEmployees', standalone: true }) export class StringifyEmployeesPipe implements PipeTransform { transform(employees: Employee[]) { return employees.map((employee) => `${employee.FirstName} ${employee.LastName}`).join(', '); } } @Component({ selector: 'demo-app', templateUrl: './app.component.html', styleUrls: ['./app.component.css'], providers: [Service], preserveWhitespaces: true, imports: [ DxDataGridModule, DxButtonModule, DxSelectBoxModule, StringifyEmployeesPipe, ], }) export class AppComponent { employees: Employee[]; prefix: string; prefixOptions: string[] = ['All', 'Dr.', 'Mr.', 'Mrs.', 'Ms.']; selectedRows: number[] = []; selectionChangedBySelectBox: boolean; constructor(service: Service) { this.employees = service.getEmployees(); } filterSelected(event) { this.selectionChangedBySelectBox = true; const prefix = event.value; if (!prefix) { return; } if (prefix === 'All') { this.selectedRows = this.employees.map((employee) => employee.ID); } else { this.selectedRows = this.employees.filter((employee) => employee.Prefix === prefix).map((employee) => employee.ID); } this.prefix = prefix; } selectionChangedHandler() { if (!this.selectionChangedBySelectBox) { this.prefix = null; } this.selectionChangedBySelectBox = false; } } bootstrapApplication(AppComponent, { providers: [ provideZoneChangeDetection({ eventCoalescing: true, runCoalescing: true }), ], });

::ng-deep #grid { display: flex; align-items: center; margin-bottom: 10px; } ::ng-deep .selected-data { margin-top: 20px; padding: 20px; background-color: rgba(191, 191, 191, 0.15); } ::ng-deep .selected-data .caption { font-weight: bold; font-size: 115%; margin-right: 4px; }

import { Injectable } from '@angular/core'; export class Employee { ID: number; FirstName: string; LastName: string; Prefix: string; Position: string; Picture: string; BirthDate: string; HireDate: string; Notes: string; Address: string; } const employees: Employee[] = [{ ID: 1, FirstName: 'John', LastName: 'Heart', Prefix: 'Mr.', Position: 'CEO', Picture: '../../../../images/employees/01.png', BirthDate: '1964/03/16', HireDate: '1995/01/15', Notes: 'John has been in the Audio/Video industry since 1990. He has led DevAv as its CEO since 2003.\r\n\r\nWhen not working hard as the CEO, John loves to golf and bowl. He once bowled a perfect game of 300.', Address: '351 S Hill St.', }, { ID: 20, FirstName: 'Olivia', LastName: 'Peyton', Prefix: 'Mrs.', Position: 'Sales Assistant', Picture: '../../../../images/employees/09.png', BirthDate: '1981/06/03', HireDate: '2012/05/14', Notes: 'Olivia loves to sell. She has been selling DevAV products since 2012. \r\n\r\nOlivia was homecoming queen in high school. She is expecting her first child in 6 months. Good Luck Olivia.', Address: '807 W Paseo Del Mar', }, { ID: 4, FirstName: 'Robert', LastName: 'Reagan', Prefix: 'Mr.', Position: 'CMO', Picture: '../../../../images/employees/03.png', BirthDate: '1974/09/07', HireDate: '2002/11/08', Notes: 'Robert was recently voted the CMO of the year by CMO Magazine. He is a proud member of the DevAV Management Team.\r\n\r\nRobert is a championship BBQ chef, so when you get the chance ask him for his secret recipe.', Address: '4 Westmoreland Pl.', }, { ID: 5, FirstName: 'Greta', LastName: 'Sims', Prefix: 'Ms.', Position: 'HR Manager', Picture: '../../../../images/employees/04.png', BirthDate: '1977/11/22', HireDate: '1998/04/23', Notes: "Greta has been DevAV's HR Manager since 2003. She joined DevAV from Sonee Corp.\r\n\r\nGreta is currently training for the NYC marathon. Her best marathon time is 4 hours. Go Greta.", Address: '1700 S Grandview Dr.', }, { ID: 6, FirstName: 'Brett', LastName: 'Wade', Prefix: 'Mr.', Position: 'IT Manager', Picture: '../../../../images/employees/05.png', BirthDate: '1968/12/01', HireDate: '2009/03/06', Notes: 'Brett came to DevAv from Microsoft and has led our IT department since 2012.\r\n\r\nWhen he is not working hard for DevAV, he coaches Little League (he was a high school pitcher).', Address: '1120 Old Mill Rd.', }, { ID: 7, FirstName: 'Sandra', LastName: 'Johnson', Prefix: 'Mrs.', Position: 'Controller', Picture: '../../../../images/employees/06.png', BirthDate: '1974/11/15', HireDate: '2005/05/11', Notes: "Sandra is a CPA and has been our controller since 2008. She loves to interact with staff so if you've not met her, be certain to say hi.\r\n\r\nSandra has 2 daughters both of whom are accomplished gymnasts.", Address: '4600 N Virginia Rd.', }, { ID: 10, FirstName: 'Kevin', LastName: 'Carter', Prefix: 'Mr.', Position: 'Shipping Manager', Picture: '../../../../images/employees/07.png', BirthDate: '1978/01/09', HireDate: '2009/08/11', Notes: 'Kevin is our hard-working shipping manager and has been helping that department work like clockwork for 18 months.\r\n\r\nWhen not in the office, he is usually on the basketball court playing pick-up games.', Address: '424 N Main St.', }, { ID: 11, FirstName: 'Cynthia', LastName: 'Stanwick', Prefix: 'Ms.', Position: 'HR Assistant', Picture: '../../../../images/employees/08.png', BirthDate: '1985/06/05', HireDate: '2008/03/24', Notes: 'Cindy joined us in 2008 and has been in the HR department for 2 years. \r\n\r\nShe was recently awarded employee of the month. Way to go Cindy!', Address: '2211 Bonita Dr.', }, { ID: 30, FirstName: 'Kent', LastName: 'Samuelson', Prefix: 'Dr.', Position: 'Ombudsman', Picture: '../../../../images/employees/02.png', BirthDate: '1972/09/11', HireDate: '2009/04/22', Notes: 'As our ombudsman, Kent is on the front-lines solving customer problems and helping our partners address issues out in the field. He is a classically trained musician and is a member of the Chamber Orchestra.', Address: '12100 Mora Dr', }, { ID: 21, FirstName: 'Taylor', LastName: 'Riley', Prefix: 'Mr.', Position: 'Network Admin', Picture: '', BirthDate: '1982/08/14', HireDate: '2012/04/14', Notes: "If you are like the rest of us at DevAV, then you've probably reached out for help from Taylor. He does a great job as a member of our IT department.", Address: '7776 Torreyson Dr', }]; @Injectable() export class Service { getEmployees() { return employees; } }

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