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Lookup

Event Handling

Documentation
This demo illustrates how to perform a custom action when the lookup value is changed. Use the onValueChanged event handler to process the new lookup value.
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<div class="dx-fieldset"> <dx-lookup [items]="employees" displayExpr="FullName" placeholder="Select employee" [showPopupTitle]="false" (onValueChanged)="valueChanged($event)"> </dx-lookup> </div> <div class="selected" *ngIf="selectedEmployee"> <img src="{{selectedEmployee.Picture}}" alt=""> <span>{{selectedEmployee.Notes}}</span> </div>
import { NgModule, Component } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxLookupModule } from 'devextreme-angular'; import { Service, Employee } from './app.service'; @Component({ selector: 'demo-app', providers: [Service], templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'] }) export class AppComponent { employees: Employee[]; selectedEmployee: any; constructor(service: Service) { this.employees = service.getEmployees(); } valueChanged(data) { this.selectedEmployee = data.value; } } @NgModule({ imports: [ BrowserModule, DxLookupModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
/deep/ .dx-theme-generic img { max-width: 200px; float: left; } img { max-width: 100%; }
import { Injectable } from '@angular/core'; export class Employee { ID: number; FirstName: string; LastName: string; Prefix: string; FullName: string; Position: string; Picture: string; BirthDate: string; HireDate: string; Notes: string; Address: string; } let employees: Employee[] = [{ ID: 1, FirstName: "John", LastName: "Heart", Prefix: "Mr.", FullName: "John Heart", 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: 2, FirstName: "Olivia", LastName: "Peyton", Prefix: "Mrs.", FullName: "Olivia Peyton", 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: 3, FirstName: "Robert", LastName: "Reagan", Prefix: "Mr.", FullName: "Robert Reagan", 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: 4, FirstName: "Greta", LastName: "Sims", Prefix: "Ms.", FullName: "Greta Sims", 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: 5, FirstName: "Brett", LastName: "Wade", Prefix: "Mr.", FullName: "Brett Wade", 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: 6, FirstName: "Sandra", LastName: "Johnson", Prefix: "Mrs.", FullName: "Sandra Johnson", 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: 7, FirstName: "Kevin", LastName: "Carter", Prefix: "Mr.", FullName: "Kevin Carter", 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: 8, FirstName: "Cynthia", LastName: "Stanwick", Prefix: "Ms.", FullName: "Cindy Stanwick", 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: 9, FirstName: "Kent", LastName: "Samuelson", Prefix: "Dr.", FullName: "Ken Samuelson", 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" }]; @Injectable() export class Service { getEmployees() { return employees; } }
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular 2 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@4.0.10/lib/plugin.js', 'typescript': 'npm:typescript@2.0.6/lib/typescript.js', '@angular/core': 'npm:@angular/core@2.4.3/bundles/core.umd.js', '@angular/common': 'npm:@angular/common@2.4.3/bundles/common.umd.js', '@angular/compiler': 'npm:@angular/compiler@2.4.3/bundles/compiler.umd.js', '@angular/platform-browser': 'npm:@angular/platform-browser@2.4.3/bundles/platform-browser.umd.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@2.4.3/bundles/platform-browser-dynamic.umd.js', '@angular/http': 'npm:@angular/http@2.4.3/bundles/http.umd.js', '@angular/router': 'npm:@angular/router@3.4.3/bundles/router.umd.js', '@angular/forms': 'npm:@angular/forms@2.4.3/bundles/forms.umd.js', 'rxjs': 'npm:rxjs@5.0.3', 'devextreme': 'npm:devextreme@16.2', 'jquery': 'npm:jquery@3.1.1/dist/jquery.min.js', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'devextreme-angular': 'npm:devextreme-angular@16.2' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { 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/16.2.6/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.light.css" /> <link rel="dx-theme" data-theme="android5.light" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.android5.light.css" /> <link rel="dx-theme" data-theme="ios7.default" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.ios7.default.css" /> <link rel="dx-theme" data-theme="win10.black" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.win10.black.css" /> <link rel="dx-theme" data-theme="win10.white" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.win10.white.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@0.19.31/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>