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Tree List

Simple Array: Hierarchical Structure

Documentation

In this demo, the TreeList widget displays data stored in an in-memory array. This array is bound to the widget using the dataSource option. Due to the hierarchical structure of data, the itemsExpr option should be specified as well. This option accepts the name of the field that provides data for nested items.

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<dx-tree-list id="employees" [dataSource]="employees" itemsExpr="items" dataStructure="tree" [showRowLines]="true" [showBorders]="true" [columnAutoWidth]="true" [expandedRowKeys]="[1]"> <dxi-column dataField="Title" caption="Position"></dxi-column> <dxi-column dataField="Full_Name"></dxi-column> <dxi-column dataField="City"></dxi-column> <dxi-column dataField="State"></dxi-column> <dxi-column dataField="Mobile_Phone"></dxi-column> <dxi-column dataField="Hire_Date" dataType="date"></dxi-column> </dx-tree-list>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxTreeListModule } from 'devextreme-angular'; import { Employee, 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 { employees: Employee[]; constructor(service: Service) { this.employees = service.getEmployees(); } } @NgModule({ imports: [ BrowserModule, DxTreeListModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #employees { max-height: 440px; }
import { Injectable } from '@angular/core'; export class Employee { Full_Name: string; Prefix: string; Title: string; City: string; State: string; Email: string; Skype: string; Mobile_Phone: string; Birth_Date: string; Hire_Date: string; items?: Employee[]; } var employees: Employee[] = [{ "Full_Name":"John Heart", "Prefix":"Mr.", "Title":"CEO", "City": "Los Angeles", "State": "California", "Email":"jheart@dx-email.com", "Skype":"jheart_DX_skype", "Mobile_Phone":"(213) 555-9392", "Birth_Date":"1964-03-16", "Hire_Date":"1995-01-15", "items": [{ "Full_Name":"Samantha Bright", "Prefix":"Dr.", "Title":"COO", "City": "Los Angeles", "State": "California", "Email":"samanthab@dx-email.com", "Skype":"samanthab_DX_skype", "Mobile_Phone":"(213) 555-2858", "Birth_Date":"1966-05-02", "Hire_Date":"2004-05-24", "items":[{ "Full_Name":"Kevin Carter", "Prefix":"Mr.", "Title":"Shipping Manager", "City": "San Diego", "State": "California", "Email":"kevinc@dx-email.com", "Skype":"kevinc_DX_skype", "Mobile_Phone":"(213) 555-2840", "Birth_Date":"1978-01-09", "Hire_Date":"2009-08-11", "items":[{ "Full_Name":"Davey Jones", "Prefix":"Mr.", "Title":"Shipping Assistant", "City": "Pasadena", "State": "California", "Email":"davidj@dx-email.com", "Skype":"davidj_DX_skype", "Mobile_Phone":"(626) 555-0281", "Birth_Date":"1983-03-06", "Hire_Date":"2011-04-24" }, { "Full_Name":"Victor Norris", "Prefix":"Mr.", "Title":"Shipping Assistant", "City": "Little Rock", "State": "Arkansas", "Email":"victorn@dx-email.com", "Skype":"victorn_DX_skype", "Mobile_Phone":"(213) 555-9278", "Birth_Date":"1986-07-23", "Hire_Date":"2012-07-23" }, { "Full_Name":"Mary Stern", "Prefix":"Ms.", "Title":"Shipping Assistant", "City": "Beaver", "State": "Utah", "Email":"marys@dx-email.com", "Skype":"marys_DX_skype", "Mobile_Phone":"(818) 555-7857", "Birth_Date":"1982-04-08", "Hire_Date":"2012-08-12" }, { "Full_Name":"Robin Cosworth", "Prefix":"Mrs.", "Title":"Shipping Assistant", "City": "Los Angeles", "State": "California", "Email":"robinc@dx-email.com", "Skype":"robinc_DX_skype", "Mobile_Phone":"(818) 555-0942", "Birth_Date":"1981-06-12", "Hire_Date":"2012-09-01" }] }] }, { "Full_Name":"Arthur Miller", "Prefix":"Mr.", "Title":"CTO", "City": "Denver", "State": "Colorado", "Email":"arthurm@dx-email.com", "Skype":"arthurm_DX_skype", "Mobile_Phone":"(310) 555-8583", "Birth_Date":"1972-07-11", "Hire_Date":"2007-12-18", "items":[{ "Full_Name":"Brett Wade", "Prefix":"Mr.", "Title":"IT Manager", "City": "Reno", "State": "Nevada", "Email":"brettw@dx-email.com", "Skype":"brettw_DX_skype", "Mobile_Phone":"(626) 555-0358", "Birth_Date":"1968-12-01", "Hire_Date":"2009-03-06", "items":[{ "Full_Name":"Taylor Riley", "Prefix":"Mr.", "Title":"Network Admin", "City": "San Jose", "State": "California", "Email":"taylorr@dx-email.com", "Skype":"taylorr_DX_skype", "Mobile_Phone":"(310) 555-7276", "Birth_Date":"1982-08-14", "Hire_Date":"2012-04-14" }, { "Full_Name":"Amelia Harper", "Prefix":"Mrs.", "Title":"Network Admin", "City": "Los Angeles", "State": "California", "Email":"ameliah@dx-email.com", "Skype":"ameliah_DX_skype", "Mobile_Phone":"(213) 555-4276", "Birth_Date":"1983-11-19", "Hire_Date":"2011-02-10" }, { "Full_Name":"Wally Hobbs", "Prefix":"Mr.", "Title":"Programmer", "City": "Chatsworth", "State": "California", "Email":"wallyh@dx-email.com", "Skype":"wallyh_DX_skype", "Mobile_Phone":"(818) 555-8872", "Birth_Date":"1984-12-24", "Hire_Date":"2011-02-17" }, { "Full_Name":"Brad Jameson", "Prefix":"Mr.", "Title":"Programmer", "City": "San Fernando", "State": "California", "Email":"bradleyj@dx-email.com", "Skype":"bradleyj_DX_skype", "Mobile_Phone":"(818) 555-4646", "Birth_Date":"1988-10-12", "Hire_Date":"2011-03-02" }, { "Full_Name":"Karen Goodson", "Prefix":"Miss", "Title":"Programmer", "City": "South Pasadena", "State": "California", "Email":"kareng@dx-email.com", "Skype":"kareng_DX_skype", "Mobile_Phone":"(626) 555-0908", "Birth_Date":"1987-04-26", "Hire_Date":"2011-03-14" }, { "Full_Name":"Morgan Kennedy", "Prefix":"Mrs.", "Title":"Graphic Designer", "City": "San Fernando Valley", "State": "California", "Email":"morgank@dx-email.com", "Skype":"morgank_DX_skype", "Mobile_Phone":"(818) 555-8238", "Birth_Date":"1984-07-17", "Hire_Date":"2012-01-11", "items":[{ "Full_Name":"Violet Bailey", "Prefix":"Ms.", "Title":"Jr Graphic Designer", "City": "La Canada", "State": "California", "Email":"violetb@dx-email.com", "Skype":"violetb_DX_skype", "Mobile_Phone":"(818) 555-2478", "Birth_Date":"1985-06-10", "Hire_Date":"2012-01-19" }] }] }, { "Full_Name":"Barb Banks", "Prefix":"Mrs.", "Title":"Support Manager", "City": "Phoenix", "State": "Arizona", "Email":"barbarab@dx-email.com", "Skype":"barbarab_DX_skype", "Mobile_Phone":"(310) 555-3355", "Birth_Date":"1979-04-14", "Hire_Date":"2002-08-07", "items":[{ "Full_Name":"Kelly Rodriguez", "Prefix":"Ms.", "Title":"Support Assistant", "City": "Boise", "State": "Idaho", "Email":"kellyr@dx-email.com", "Skype":"kellyr_DX_skype", "Mobile_Phone":"(818) 555-9248", "Birth_Date":"1988-05-11", "Hire_Date":"2012-10-13" }, { "Full_Name":"James Anderson", "Prefix":"Mr.", "Title":"Support Assistant", "City": "Atlanta", "State": "Georgia", "Email":"jamesa@dx-email.com", "Skype":"jamesa_DX_skype", "Mobile_Phone":"(323) 555-4702", "Birth_Date":"1987-01-29", "Hire_Date":"2012-10-18" }, { "Full_Name":"Antony Remmen", "Prefix":"Mr.", "Title":"Support Assistant", "City": "Boise", "State": "Idaho", "Email":"anthonyr@dx-email.com", "Skype":"anthonyr_DX_skype", "Mobile_Phone":"(310) 555-6625", "Birth_Date":"1986-02-19", "Hire_Date":"2013-01-19" }] }] }, { "Full_Name":"Robert Reagan", "Prefix":"Mr.", "Title":"CMO", "City": "Bentonville", "State": "Arkansas", "Email":"robertr@dx-email.com", "Skype":"robertr_DX_skype", "Mobile_Phone":"(818) 555-2387", "Birth_Date":"1974-09-07", "Hire_Date":"2002-11-08", "items":[{ "Full_Name":"Ed Holmes", "Prefix":"Dr.", "Title":"Sales Manager", "City": "Malibu", "State": "California", "Email":"edwardh@dx-email.com", "Skype":"edwardh_DX_skype", "Mobile_Phone":"(310) 555-1288", "Birth_Date":"1973-07-14", "Hire_Date":"2005-06-19", "items":[{ "Full_Name":"Sammy Hill", "Prefix":"Mr.", "Title":"Sales Assistant", "City": "Pasadena", "State": "California", "Email":"sammyh@dx-email.com", "Skype":"sammyh_DX_skype", "Mobile_Phone":"(626) 555-7292", "Birth_Date":"1984-02-17", "Hire_Date":"2012-02-01" }, { "Full_Name":"Olivia Peyton", "Prefix":"Mrs.", "Title":"Sales Assistant", "City": "Atlanta", "State": "Georgia", "Email":"oliviap@dx-email.com", "Skype":"oliviap_DX_skype", "Mobile_Phone":"(310) 555-2728", "Birth_Date":"1981-06-03", "Hire_Date":"2012-05-14" }] }] }, { "Full_Name":"Greta Sims", "Prefix":"Ms.", "Title":"HR Manager", "City": "Atlanta", "State": "Georgia", "Email":"gretas@dx-email.com", "Skype":"gretas_DX_skype", "Mobile_Phone":"(818) 555-6546", "Birth_Date":"1977-11-22", "Hire_Date":"1998-04-23", "items":[{ "Full_Name":"Sandra Johnson", "Prefix":"Mrs.", "Title":"Controller", "City": "Beaver", "State": "Utah", "Email":"sandraj@dx-email.com", "Skype":"sandraj_DX_skype", "Mobile_Phone":"(562) 555-2082", "Birth_Date":"1974-11-15", "Hire_Date":"2005-05-11" }, { "Full_Name":"Cindy Stanwick", "Prefix":"Ms.", "Title":"HR Assistant", "City": "Little Rock", "State": "Arkansas", "Email":"cindys@dx-email.com", "Skype":"cindys_DX_skype", "Mobile_Phone":"(818) 555-6655", "Birth_Date":"1985-06-05", "Hire_Date":"2008-03-24" }, { "Full_Name":"Marcus Orbison", "Prefix":"Mr.", "Title":"Travel Coordinator", "City": "Los Angeles", "State": "California", "Email":"marcuso@dx-email.com", "Skype":"marcuso_DX_skype", "Mobile_Phone":"(213) 555-7098", "Birth_Date":"1982-03-02", "Hire_Date":"2005-05-19" }, { "Full_Name":"Sandy Bright", "Prefix":"Ms.", "Title":"Benefits Coordinator", "City": "Denver", "State": "Colorado", "Email":"sandrab@dx-email.com", "Skype":"sandrab_DX_skype", "Mobile_Phone":"(818) 555-0524", "Birth_Date":"1983-09-11", "Hire_Date":"2005-06-04" }, { "Full_Name":"Ken Samuelson", "Prefix":"Dr.", "Title":"Ombudsman", "City": "St. Louis", "State": "Missouri", "Email":"kents@dx-email.com", "Skype":"kents_DX_skype", "Mobile_Phone":"(562) 555-9282", "Birth_Date":"1972-09-11", "Hire_Date":"2009-04-22" }] }] }]; @Injectable() export class Service { getEmployees(): Employee[] { return employees; } }
// 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://github.com/DevExpress/devextreme-angular/blob/master/README.md System.config({ transpiler: 'ts', typescriptOptions: { module: "commonjs", emitDecoratorMetadata: true, experimentalDecorators: true }, meta: { 'typescript': { "exports": "ts" } }, paths: { 'npm:': 'https://unpkg.com/' }, map: { 'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js', 'typescript': 'npm:typescript@3.4.5/lib/typescript.js', '@angular/core': 'npm:@angular/core@8.0.0/bundles/core.umd.js', '@angular/common': 'npm:@angular/common@8.0.0/bundles/common.umd.js', '@angular/compiler': 'npm:@angular/compiler@8.0.0/bundles/compiler.umd.js', '@angular/platform-browser': 'npm:@angular/platform-browser@8.0.0/bundles/platform-browser.umd.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@8.0.0/bundles/platform-browser-dynamic.umd.js', '@angular/router': 'npm:@angular/router@8.0.0/bundles/router.umd.js', '@angular/forms': 'npm:@angular/forms@8.0.0/bundles/forms.umd.js', '@angular/common/http': 'npm:@angular/common@8.0.0/bundles/common-http.umd.js', 'tslib': 'npm:tslib/tslib.js', 'rxjs': 'npm:rxjs@6.3.3', 'rxjs/operators': 'npm:rxjs@6.3.3/operators', 'devextreme': 'npm:devextreme@19.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.6/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram', 'devextreme-angular': 'npm:devextreme-angular@19.1' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { defaultExtension: 'js' }, 'rxjs': { main: 'index.js', defaultExtension: 'js' }, 'rxjs/operators': { main: 'index.js', defaultExtension: 'js' }, 'devextreme-angular': { main: 'index.js', defaultExtension: 'js' } } });
<!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/19.1.5/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.5/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@0.6.25/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>