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Form

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:

  • labelLocation
    Specifies whether to display labels above or to the left of corresponding editors.

  • 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.

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<div id="form-demo"> <div class="widget-container"> <div>Select company:</div> <dx-select-box #company displayExpr="Name" [(dataSource)]="companies" [value]="companies[0]"></dx-select-box> <dx-form id="form" [(formData)]="company.value" [readOnly]="readOnly" [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 location:</span> <dx-select-box [items]="['left', 'top']" [(value)]="labelLocation"></dx-select-box> </div> <div class="option"> <span>Columns count:</span> <dx-select-box [items]="['auto', 1, 2, 3]" [(value)]="colCount"></dx-select-box> </div> <div class="option"> <span>Min column width:</span> <dx-select-box [items]="[150, 200, 300]" [(value)]="minColWidth"></dx-select-box> </div> <div class="option"> <span>Form width:</span> <dx-number-box [max]="550" [(value)]="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 } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxCheckBoxModule, DxSelectBoxModule, DxNumberBoxModule, DxFormModule } from 'devextreme-angular'; 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[]; labelLocation: string; readOnly: boolean; showColon: boolean; minColWidth: number; colCount: number; width: any; constructor( service: Service ) { this.labelLocation = "top"; this.readOnly = false; this.showColon = true; this.minColWidth = 300; this.colCount = 2; this.companies = service.getCompanies(); } } @NgModule({ imports: [ BrowserModule, 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; } let 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: "http://www.nowebsitesupermart.com" }, { 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: "http://www.nowebsitedepot.com" }, { 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: "http://www.nowebsitemusic.com" }, { 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: "http://www.nowebsitetomsclub.com" }]; @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.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@2.3.0/tslib.js', 'rxjs': 'npm:rxjs@6.4.0', 'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.27.0/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@21.1.4/cjs', 'devextreme/bundles/dx.all': 'npm:devextreme@21.1.4/bundles/dx.all.js', 'jszip': 'npm:jszip@3.6.0/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.1.4/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.1.19', 'devexpress-gantt': 'npm:devexpress-gantt@2.1.42', 'devextreme-angular': 'npm:devextreme-angular@21.1.4', '@devextreme/vdom': 'npm:@devextreme/vdom@1.2.2', 'inferno': 'npm:inferno@7.4.8/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat@7.4.8/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.8/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom@1.0.7/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.8/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.8/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class@7.4.8/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras@7.4.8/dist/inferno-extras.min.js' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { defaultExtension: 'js' }, '@devextreme/vdom': { defaultExtension: 'js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js' } }, packageConfigPaths: [ "npm:@devextreme/*/package.json", "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", ] }; 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/21.1.4/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.1.4/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>