TreeView with Search Bar

import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxTreeViewModule, DxSelectBoxModule } from 'devextreme-angular'; import { Product, Service } from './app.service'; if(!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], providers: [Service] }) export class AppComponent { products: Product[]; currentItem: Product; constructor(service: Service) { this.products = service.getProducts(); this.currentItem = this.products[0]; } selectItem(e) { this.currentItem = e.itemData; } } @NgModule({ imports: [ BrowserModule, DxTreeViewModule, DxSelectBoxModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);

::ng-deep #treeview { height: 400px; } ::ng-deep .options { padding: 20px; position: absolute; bottom: 0; right: 0; width: 260px; top: 0; background-color: #f5f5f5; } ::ng-deep .caption { font-size: 18px; font-weight: 500; } ::ng-deep .option { margin-top: 10px; } ::ng-deep .option > .dx-selectbox { display: inline-block; vertical-align: middle; max-width: 350px; width: 100%; margin-top: 5px; }

import { Injectable } from '@angular/core'; export class Product { id: string; text: string; expanded?: boolean; items?: Product[]; price?: number; } var products: Product[] = [{ id: "1", text: "Stores", expanded: true, items: [{ id: "1_1", text: "Super Mart of the West", expanded: true, items: [{ id: "1_1_1", text: "Video Players", items: [{ id: "1_1_1_1", text: "HD Video Player", price: 220 }, { id: "1_1_1_2", text: "SuperHD Video Player", price: 270 }] }, { id: "1_1_2", text: "Televisions", items: [{ id: "1_1_2_1", text: "SuperLCD 42", price: 1200 }, { id: "1_1_2_2", text: "SuperLED 42", price: 1450 }, { id: "1_1_2_3", text: "SuperLED 50", price: 1600 }, { id: "1_1_2_4", text: "SuperLCD 55", price: 1350 }, { id: "1_1_2_5", text: "SuperLCD 70", price: 4000 }] }, { id: "1_1_3", text: "Monitors", items: [{ id: "1_1_3_1", text: "19\"", items: [{ id: "1_1_3_1_1", text: "DesktopLCD 19", price: 160 }] }, { id: "1_1_3_2", text: "21\"", items: [{ id: "1_1_3_2_1", text: "DesktopLCD 21", price: 170 }, { id: "1_1_3_2_2", text: "DesktopLED 21", price: 175 }] }] }, { id: "1_1_4", text: "Projectors", items: [{ id: "1_1_4_1", text: "Projector Plus", price: 550 }, { id: "1_1_4_2", text: "Projector PlusHD", price: 750 }] }] }, { id: "1_2", text: "Braeburn", items: [{ id: "1_2_1", text: "Video Players", items: [{ id: "1_2_1_1", text: "HD Video Player", price: 240 }, { id: "1_2_1_2", text: "SuperHD Video Player", price: 300 }] }, { id: "1_2_2", text: "Televisions", items: [{ id: "1_2_2_1", text: "SuperPlasma 50", price: 1800 }, { id: "1_2_2_2", text: "SuperPlasma 65", price: 3500 }] }, { id: "1_2_3", text: "Monitors", items: [{ id: "1_2_3_1", text: "19\"", items: [{ id: "1_2_3_1_1", text: "DesktopLCD 19", price: 170 }] }, { id: "1_2_3_2", text: "21\"", items: [{ id: "1_2_3_2_1", text: "DesktopLCD 21", price: 180 }, { id: "1_2_3_2_2", text: "DesktopLED 21", price: 190 }] }] }] }, { id: "1_3", text: "E-Mart", items: [{ id: "1_3_1", text: "Video Players", items: [{ id: "1_3_1_1", text: "HD Video Player", price: 220 }, { id: "1_3_1_2", text: "SuperHD Video Player", price: 275 }] }, { id: "1_3_3", text: "Monitors", items: [{ id: "1_3_3_1", text: "19\"", items: [{ id: "1_3_3_1_1", text: "DesktopLCD 19", price: 165 }] }, { id: "1_3_3_2", text: "21\"", items: [{ id: "1_3_3_2_1", text: "DesktopLCD 21", price: 175 }] }] }] }, { id: "1_4", text: "Walters", items: [{ id: "1_4_1", text: "Video Players", items: [{ id: "1_4_1_1", text: "HD Video Player", price: 210 }, { id: "1_4_1_2", text: "SuperHD Video Player", price: 250 }] }, { id: "1_4_2", text: "Televisions", items: [{ id: "1_4_2_1", text: "SuperLCD 42", price: 1100 }, { id: "1_4_2_2", text: "SuperLED 42", price: 1400 }, { id: "1_4_2_3", text: "SuperLED 50", price: 1500 }, { id: "1_4_2_4", text: "SuperLCD 55", price: 1300 }, { id: "1_4_2_5", text: "SuperLCD 70", price: 4000 }, { id: "1_4_2_6", text: "SuperPlasma 50", price: 1700 }] }, { id: "1_4_3", text: "Monitors", items: [{ id: "1_4_3_1", text: "19\"", items: [{ id: "1_4_3_1_1", text: "DesktopLCD 19", price: 160 }] }, { id: "1_4_3_2", text: "21\"", items: [{ id: "1_4_3_2_1", text: "DesktopLCD 21", price: 170 }, { id: "1_4_3_2_2", text: "DesktopLED 21", price: 180 }] }] }, { id: "1_4_4", text: "Projectors", items: [{ id: "1_4_4_1", text: "Projector Plus", price: 550 }, { id: "1_4_4_2", text: "Projector PlusHD", price: 750 }] }] }] }]; @Injectable() export class Service { getProducts(): Product[] { return products; } }

// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular and DevExtreme here: // https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/ System.config({ transpiler: 'ts', typescriptOptions: { module: "system", emitDecoratorMetadata: true, experimentalDecorators: true }, meta: { 'typescript': { "exports": "ts" }, 'devextreme/localization.js': { "esModule": true } }, paths: { 'npm:': 'https://unpkg.com/' }, map: { 'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js', 'typescript': 'npm:typescript@3.5.3/lib/typescript.js', '@angular': 'npm:@angular', 'tslib': 'npm:tslib@2.0.3/tslib.js', 'rxjs': 'npm:rxjs@6.3.3', 'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@20.2.4', 'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@0.9.7/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.0.5', 'devexpress-gantt': 'npm:devexpress-gantt@2.0.8', 'devextreme-angular': 'npm:devextreme-angular@20.2.4', 'preact': 'npm:preact@10.5.7/dist/preact.js', 'preact/hooks': 'npm:preact@10.5.7/hooks/dist/hooks.js' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { defaultExtension: 'js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js' } }, packageConfigPaths: [ "npm:@angular/*/package.json", "npm:@angular/common/*/package.json", "npm:rxjs/package.json", "npm:rxjs/operators/package.json", "npm:devextreme-angular/*/package.json", "npm:devextreme-angular/ui/*/package.json", "npm:devextreme-angular/package.json", "npm:devexpress-diagram/package.json", "npm:devexpress-gantt/package.json", ] });

<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <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=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.10.2/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script src="config.js"></script> <script> System.import('app').catch(console.error.bind(console)); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body> </html>