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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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import React from 'react'; import CheckBox from 'devextreme-react/check-box'; import SelectBox from 'devextreme-react/select-box'; import NumberBox from 'devextreme-react/number-box'; import Form from 'devextreme-react/form'; import service from './data.js'; class App extends React.Component { constructor() { super(); this.companies = service.getCompanies(); this.state = { labelLocation: 'top', readOnly: false, showColon: true, minColWidth: 300, colCount: 2, company: this.companies[0] }; this.onCompanyChanged = this.onCompanyChanged.bind(this); this.onLabelLocationChanged = this.onLabelLocationChanged.bind(this); this.onReadOnlyChanged = this.onReadOnlyChanged.bind(this); this.onShowColonChanged = this.onShowColonChanged.bind(this); this.onMinColWidthChanged = this.onMinColWidthChanged.bind(this); this.onColumnsCountChanged = this.onColumnsCountChanged.bind(this); this.onFormWidthChanged = this.onFormWidthChanged.bind(this); } render() { const { labelLocation, readOnly, showColon, minColWidth, colCount, company, width } = this.state; return ( <div id="form-demo"> <div className="widget-container"> <div>Select company:</div> <SelectBox displayExpr="Name" dataSource={this.companies} value={company} onValueChanged={this.onCompanyChanged} /> <Form id="form" formData={company} readOnly={readOnly} showColonAfterLabel={showColon} labelLocation={labelLocation} minColWidth={minColWidth} colCount={colCount} width={width} /> </div> <div className="options"> <div className="caption">Options</div> <div className="option"> <span>Label location:</span> <SelectBox items={['left', 'top']} value={labelLocation} onValueChanged={this.onLabelLocationChanged} /> </div> <div className="option"> <span>Columns count:</span> <SelectBox items={['auto', 1, 2, 3]} value={colCount} onValueChanged={this.onColumnsCountChanged} /> </div> <div className="option"> <span>Min column width:</span> <SelectBox items={[150, 200, 300]} value={minColWidth} onValueChanged={this.onMinColWidthChanged} /> </div> <div className="option"> <span>Form width:</span> <NumberBox max={550} value={width} onValueChanged={this.onFormWidthChanged} /> </div> <div className="option"> <CheckBox text="readOnly" value={readOnly} onValueChanged={this.onReadOnlyChanged} /> </div> <div className="option"> <CheckBox text="showColonAfterLabel" value={showColon} onValueChanged={this.onShowColonChanged} /> </div> </div> </div> ); } onCompanyChanged(e) { this.setState({ company: e.value }); } onLabelLocationChanged(e) { this.setState({ labelLocation: e.value }); } onReadOnlyChanged(e) { this.setState({ readOnly: e.value }); } onShowColonChanged(e) { this.setState({ showColon: e.value }); } onMinColWidthChanged(e) { this.setState({ minColWidth: e.value }); } onColumnsCountChanged(e) { this.setState({ colCount: e.value }); } onFormWidthChanged(e) { this.setState({ width: e.value }); } } export default App;
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app') );
<!DOCTYPE html> <html> <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" /> <link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import('./index.js'); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>
.widget-container { margin-right: 320px; padding: 20px; max-width: 550px; min-width: 300px; } #form { margin-top: 25px; } .options { padding: 20px; position: absolute; bottom: 0; right: 0; width: 260px; top: 0; background-color: rgba(191, 191, 191, 0.15); } .caption { font-size: 18px; font-weight: 500; } .option { margin-top: 10px; }
const companies = [{ 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' }]; export default { getCompanies() { return companies; } };
window.config = { transpiler: 'plugin-babel', meta: { 'devextreme/localization.js': { "esModule": true }, }, paths: { 'npm:': 'https://unpkg.com/' }, defaultExtension: 'js', map: { 'react': 'npm:react@17.0.2/umd/react.development.js', 'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js', 'prop-types': 'npm:prop-types@15.7.2/prop-types.js', '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-react': 'npm:devextreme-react@21.1.4', '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/dist/dx-diagram.js', 'devexpress-gantt': 'npm:devexpress-gantt@2.1.42/dist/dx-gantt.js', '@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', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, '@devextreme/vdom': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js' } }, packageConfigPaths: [ "npm:@devextreme/*/package.json", ], babelOptions: { sourceMaps: false, stage0: true, react: true } }; System.config(window.config);