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Overview

The Form component builds a data entry UI for an object assigned to the formData property. The component displays and aligns label-editor pairs for each field in the bound object.

You can use the editors on the right to modify the following properties:

  • labelMode: "outside" | "static" | "floating" | "hidden"
    Specifies label display mode.

  • labelLocation: "top" | "left" | "right"
    Specifies whether to place outer labels above, to the left, or to the right of corresponding editors. The latter location is not demonstrated in this example.

  • colCount
    Specifies the number of columns in the layout. To build an adaptive layout where the column count depends on the container width, set this property's value to "auto".

  • minColWidth
    Specifies the minimum column width. Use this property when the colCount property's value is "auto".

  • width
    Specifies the Form component's width.

  • readOnly
    Makes the Form editors read-only.

  • showColonAfterLabel
    Specifies whether the Form displays a colon after a label.

To get started with the DevExtreme Form component, refer to the following tutorial for step-by-step instructions: Getting Started with Form.

Backend API
<div id="form-demo"> <div class="widget-container"> <div *ngIf="labelMode === 'outside'">Select company:</div> <dx-select-box #company displayExpr="Name" [inputAttr]="{ 'aria-label': 'Company' }" [(dataSource)]="companies" label="Select company" [labelMode]="getCompanySelectorLabelMode()" [value]="companies[0]" ></dx-select-box> <dx-form id="form" [(formData)]="company.value" [readOnly]="readOnly" [labelMode]="labelMode" [showColonAfterLabel]="showColon" [labelLocation]="labelLocation" [minColWidth]="minColWidth" [colCount]="colCount" [width]="width" ></dx-form> </div> <div class="options"> <div class="caption">Options</div> <div class="option"> <span>Label mode:</span> <dx-select-box [items]="['outside', 'static', 'floating', 'hidden']" [inputAttr]="{ 'aria-label': 'Label Mode' }" [(value)]="labelMode" ></dx-select-box> </div> <div class="option"> <span>Label location:</span> <dx-select-box [items]="['left', 'top']" [inputAttr]="{ 'aria-label': 'Label Location' }" [(value)]="labelLocation" ></dx-select-box> </div> <div class="option"> <span>Columns count:</span> <dx-select-box [items]="['auto', 1, 2, 3]" [inputAttr]="{ 'aria-label': 'Column Count' }" [(value)]="colCount" ></dx-select-box> </div> <div class="option"> <span>Min column width:</span> <dx-select-box [items]="[150, 200, 300]" [inputAttr]="{ 'aria-label': 'Min Column Width' }" [(value)]="minColWidth" ></dx-select-box> </div> <div class="option"> <span>Form width:</span> <dx-number-box [max]="550" [(value)]="width" [inputAttr]="{ 'aria-label': 'Form Width' }" ></dx-number-box> </div> <div class="option"> <dx-check-box text="readOnly" [(value)]="readOnly"></dx-check-box> </div> <div class="option"> <dx-check-box text="showColonAfterLabel" [(value)]="showColon" ></dx-check-box> </div> </div> </div>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule, BrowserTransferStateModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxCheckBoxModule, DxNumberBoxModule, DxSelectBoxModule } from 'devextreme-angular'; import { DxFormModule, DxFormTypes } from 'devextreme-angular/ui/form'; import { Company, Service } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', providers: [Service], templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], }) export class AppComponent { companies: Company[]; width: number; labelMode: DxFormTypes.FormLabelMode = 'floating'; labelLocation: DxFormTypes.LabelLocation = 'left'; readOnly = false; showColon = true; minColWidth = 300; colCount = 2; constructor(service: Service) { this.companies = service.getCompanies(); } getCompanySelectorLabelMode() { return this.labelMode === 'outside' ? 'hidden' : this.labelMode; } } @NgModule({ imports: [ BrowserModule, BrowserTransferStateModule, DxCheckBoxModule, DxSelectBoxModule, DxNumberBoxModule, DxFormModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep .widget-container { margin-right: 320px; padding: 20px; max-width: 550px; min-width: 300px; } ::ng-deep #form { margin-top: 25px; } ::ng-deep .options { padding: 20px; position: absolute; bottom: 0; right: 0; width: 260px; top: 0; background-color: rgba(191, 191, 191, 0.15); } ::ng-deep .caption { font-size: 18px; font-weight: 500; } ::ng-deep.option { margin-top: 10px; }
import { Injectable } from '@angular/core'; export class Company { ID: number; Name: string; Address: string; City: string; State: string; ZipCode: number; Phone: string; Fax: string; Website: string; Active: boolean; } const companies: Company[] = [{ ID: 1, Name: 'Super Mart of the West', Address: '702 SW 8th Street', City: 'Bentonville', State: 'Arkansas', ZipCode: 72716, Phone: '(800) 555-2797', Fax: '(800) 555-2171', Website: '', Active: true, }, { ID: 2, Name: 'Electronics Depot', Address: '2455 Paces Ferry Road NW', City: 'Atlanta', State: 'Georgia', ZipCode: 30339, Phone: '(800) 595-3232', Fax: '(800) 595-3231', Website: '', Active: true, }, { ID: 3, Name: 'K&S Music', Address: '1000 Nicllet Mall', City: 'Minneapolis', State: 'Minnesota', ZipCode: 55403, Phone: '(612) 304-6073', Fax: '(612) 304-6074', Website: '', Active: true, }, { ID: 4, Name: "Tom's Club", Address: '999 Lake Drive', City: 'Issaquah', State: 'Washington', ZipCode: 98027, Phone: '(800) 955-2292', Fax: '(800) 955-2293', Website: '', Active: true, }]; @Injectable() export class Service { getCompanies() : Company[] { return companies; } }
// 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/ window.exports = window.exports || {}; window.config = { transpiler: 'ts', typescriptOptions: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, }, meta: { 'typescript': { 'exports': 'ts', }, 'devextreme/time_zone_utils.js': { 'esModule': true, }, 'devextreme/localization.js': { 'esModule': true, }, 'devextreme/viz/palette.js': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', }, map: { 'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js', 'typescript': 'npm:typescript@4.2.4/lib/typescript.js', '@angular/core': 'npm:@angular/core@12.2.17', '@angular/platform-browser': 'npm:@angular/platform-browser@12.2.17', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@12.2.17', '@angular/forms': 'npm:@angular/forms@12.2.17', '@angular/common': 'npm:@angular/common@12.2.17', '@angular/compiler': 'npm:@angular/compiler@12.2.17', 'tslib': 'npm:tslib@2.6.2/tslib.js', 'rxjs': 'npm:rxjs@7.5.3/dist/bundles/rxjs.umd.js', 'rxjs/operators': 'npm:rxjs@7.5.3/dist/cjs/operators/index.js', 'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@23.2.5/cjs', 'devextreme/bundles/dx.all': 'npm:devextreme@23.2.5/bundles/dx.all.js', 'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.6.4/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.5', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.51', 'devextreme-angular': 'npm:devextreme-angular@23.2.5', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12', 'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js', // Prettier 'prettier/standalone': 'npm:prettier@2.8.4/standalone.js', 'prettier/parser-html': 'npm:prettier@2.8.4/parser-html.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', }, 'rxjs': { defaultExtension: 'js', }, 'rxjs/operators': { defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@3.0.12/inferno/package.json', 'npm:@angular/*/package.json', 'npm:@angular/common@12.2.17/*/package.json', 'npm:rxjs@7.5.3/package.json', 'npm:rxjs@7.5.3/operators/package.json', 'npm:devextreme-angular@23.2.5/*/package.json', 'npm:devextreme-angular@23.2.5/ui/*/package.json', 'npm:devextreme-angular@23.2.5/package.json', 'npm:devexpress-diagram@2.2.5/package.json', 'npm:devexpress-gantt@4.1.51/package.json', ], }; System.config(window.config);
<!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/23.2.5/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.12.0/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.13/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>