Fixed and Floating Number of Columns
The Form UI component can have a fixed number of columns in the layout...
jQuery
$(function() { $("#formContainer").dxForm({ formData: { firstName: "John", lastName: "Heart", position: "CEO" }, colCount: 3 }); });
Angular
<dx-form [(formData)]="employee" [colCount]="3"> </dx-form>
import { DxFormModule } from "devextreme-angular"; // ... export class AppComponent { employee = { firstName: "John", lastName: "Heart", position: "CEO" } } @NgModule({ imports: [ // ... DxFormModule ], // ... })
Vue
<template> <DxForm :form-data="employee" :col-count="3"> <DxSimpleItem data-field="firstName" /> <DxSimpleItem data-field="lastName" /> <DxSimpleItem data-field="position" /> </DxForm> </template> <script> import 'devextreme/dist/css/dx.light.css'; import { DxForm, DxSimpleItem } from 'devextreme-vue/form'; export default { components: { DxForm, DxSimpleItem }, data() { return { employee: { firstName: 'John', lastName: 'Heart', position: 'CEO' } } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import { Form, SimpleItem } from 'devextreme-react/form'; class App extends React.Component { employee = { firstName: 'John', lastName: 'Heart', position: 'CEO' } render() { return ( <Form formData={this.employee} colCount={3}> <SimpleItem dataField="firstName" /> <SimpleItem dataField="lastName" /> <SimpleItem dataField="position" /> </Form> ); } } export default App;
... or it can vary the number of columns depending on the width of the container. To enable the latter mode, assign "auto" to the colCount property and specify the minimum column width using the minColWidth property. In this case, the maximum number of columns the layout can fit equals to floor(container_width / minColWidth)
. Note that groups and tabs can also have their own multi-column layouts inside.
jQuery
$(function() { $("#formContainer").dxForm({ formData: { firstName: "John", lastName: "Heart", position: "CEO", hireDate: new Date(2012, 4, 13), city: "Los Angeles", phone: "+1(213) 555-9392", email: "jheart@dx-email.com" }, colCount: "auto", minColWidth: 500, items: ["firstName", "lastName", { itemType: "tabbed", tabs: [{ title: "Info", colCount: 3, items: ["position", "hireDate", "city" ] }, { title: "Contacts", colCount: 2, items: ["phone", "email"] }] }] }); });
Angular
<dx-form [(formData)]="employee" colCount="auto" [minColWidth]="500"> <dxi-item dataField="firstName"></dxi-item> <dxi-item dataField="lastName"></dxi-item> <dxi-item itemType="tabbed"> <dxi-tab title="Info" [colCount]="3" [items]="['position', 'hireDate', 'city' ]"> </dxi-tab> <dxi-tab title="Contacts" [colCount]="2" [items]="['phone', 'email']"> </dxi-tab> </dxi-item> </dx-form>
import { DxFormModule } from "devextreme-angular"; // ... export class AppComponent { employee = { firstName: "John", lastName: "Heart", position: "CEO", hireDate: new Date(2012, 4, 13), city: "Los Angeles", phone: "+1(213) 555-9392", email: "jheart@dx-email.com" } } @NgModule({ imports: [ // ... DxFormModule ], // ... })
Vue
<template> <DxForm :form-data="employee" col-count="auto" :min-col-width="500"> <DxSimpleItem dataField="firstName" /> <DxSimpleItem dataField="lastName" /> <DxTabbedItem> <DxTab title="Info" :col-count="3"> <DxSimpleItem dataField="position" /> <DxSimpleItem dataField="hireDate" /> <DxSimpleItem dataField="city" /> </DxTab> <DxTab title="Contacts" :col-count="2"> <DxSimpleItem dataField="phone" /> <DxSimpleItem dataField="email" /> </DxTab> </DxTabbedItem> </DxForm> </template> <script> import 'devextreme/dist/css/dx.light.css'; import { DxForm, DxTabbedItem, DxSimpleItem, DxTab } from 'devextreme-vue/form'; const employee = { firstName: 'John', lastName: 'Heart', position: 'CEO', hireDate: new Date(2012, 4, 13), city: 'Los Angeles', phone: '+1(213) 555-9392', email: 'jheart@dx-email.com' }; export default { components: { DxForm, DxTabbedItem, DxSimpleItem, DxTab }, data() { return { employee }; }, }; </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import { Form, SimpleItem, TabbedItem, Tab } from 'devextreme-react/form'; const employee = { firstName: 'John', lastName: 'Heart', position: 'CEO', hireDate: new Date(2012, 4, 13), city: 'Los Angeles', phone: '+1(213) 555-9392', email: 'jheart@dx-email.com' }; class App extends React.Component { render() { return ( <Form formData={employee} colCount="auto" minColWidth={500}> <SimpleItem dataField="firstName" /> <SimpleItem dataField="lastName" /> <TabbedItem> <Tab title="Info" colCount={3}> <SimpleItem dataField="position" /> <SimpleItem dataField="hireDate" /> <SimpleItem dataField="city" /> </Tab> <Tab title="Contacts" colCount={2}> <SimpleItem dataField="phone" /> <SimpleItem dataField="email" /> </Tab> </TabbedItem> </Form> ); } } export default App;
Span Columns
If an item should span more than one column, assign the required number to the colSpan property. Groups and tabs can also have individual colSpan values.
jQuery
$(function() { $("#formContainer").dxForm({ formData: { firstName: "John", lastName: "Heart", notes: "John has been in the Audio/Video industry since 1990.", phone: "+1(213) 555-9392", email: "jheart@dx-email.com" }, colCount: 2, items: ["firstName", "lastName", { dataField: "notes", colSpan: 2 }, { itemType: "tabbed", colSpan: 2, tabs: [{ title: "Contacts", items: ["phone", "email"] }] }] }); });
Angular
<dx-form [(formData)]="employee" [colCount]="2"> <dxi-item dataField="firstName"></dxi-item> <dxi-item dataField="lastName"></dxi-item> <dxi-item dataField="notes" [colSpan]="2"></dxi-item> <dxi-item itemType="tabbed" [colSpan]="2"> <dxi-tab title="Contacts" [items]="['phone', 'email']"> </dxi-tab> </dxi-item> </dx-form>
import { DxFormModule } from "devextreme-angular"; // ... export class AppComponent { employee = { firstName: "John", lastName: "Heart", notes: "John has been in the Audio/Video industry since 1990.", phone: "+1(213) 555-9392", email: "jheart@dx-email.com" } } @NgModule({ imports: [ // ... DxFormModule ], // ... })
Vue
<template> <DxForm :form-data="employee" :col-count="2"> <DxSimpleItem data-field="firstName" /> <DxSimpleItem data-field="lastName" /> <DxSimpleItem data-field="notes" :col-span="2" /> <DxTabbedItem :col-span="2"> <DxTab title="Contacts"> <DxSimpleItem data-field="phone" /> <DxSimpleItem data-field="email" /> </DxTab> </DxTabbedItem> </DxForm> </template> <script> import 'devextreme/dist/css/dx.light.css'; import { DxForm, DxSimpleItem, DxTabbedItem, DxTab } from 'devextreme-vue/form'; export default { components: { DxForm, DxSimpleItem, DxTabbedItem, DxTab }, data() { return { employee: { firstName: 'John', lastName: 'Heart', notes: 'John has been in the Audio/Video industry since 1990.', phone: '+1(213) 555-9392', email: 'jheart@dx-email.com' } } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import { Form, SimpleItem, TabbedItem, Tab } from 'devextreme-react/form'; class App extends React.Component { employee = { firstName: 'John', lastName: 'Heart', notes: 'John has been in the Audio/Video industry since 1990.', phone: '+1(213) 555-9392', email: 'jheart@dx-email.com' } render() { return ( <Form formData={this.employee} colCount={2}> <SimpleItem dataField="firstName" /> <SimpleItem dataField="lastName" /> <SimpleItem dataField="notes" colSpan={2} /> <TabbedItem colSpan={2}> <Tab title="Contacts"> <SimpleItem dataField="phone" /> <SimpleItem dataField="email" /> </Tab> </TabbedItem> </Form> ); } } export default App;
Layout Depending on the Screen Width
The Form UI component enables you to specify different layouts for different screen widths. For this purpose, use the screenByWidth function and colCountByScreen property. The screenByWidth function returns a size qualifier depending on the screen width. The colCountByScreen property establishes the dependency between the size qualifier and the column count.
jQuery
$(function() { $("#formContainer").dxForm({ formData: { firstName: "John", lastName: "Heart", position: "CEO", hireDate: new Date(2012, 4, 13) }, screenByWidth: function (width) { if (width < 768) return "xs"; if (width < 992) return "sm"; if (width < 1200) return "md"; return "lg"; }, colCountByScreen: { "xs": 1, "md": 3, "sm": 2, "lg": 4 } }); });
Angular
<dx-form [(formData)]="employee" [screenByWidth]="getSizeQualifier"> <dxo-col-count-by-screen [xs]="1" [sm]="2" [md]="3" [lg]="4"></dxo-col-count-by-screen> </dx-form>
import { DxFormModule } from "devextreme-angular"; // ... export class AppComponent { employee = { firstName: "John", lastName: "Heart", position: "CEO", hireDate: new Date(2012, 4, 13) } getSizeQualifier (width) { if (width < 768) return "xs"; if (width < 992) return "sm"; if (width < 1200) return "md"; return "lg"; } } @NgModule({ imports: [ // ... DxFormModule ], // ... })
Vue
<template> <DxForm :form-data="employee" :col-count-by-screen="colCountByScreen" :screen-by-width="screenByWidth" /> </template> <script> import 'devextreme/dist/css/dx.light.css'; import DxForm from 'devextreme-vue/form'; const employee = { firstName: 'John', lastName: 'Heart', position: 'CEO', hireDate: new Date(2012, 4, 13) } export default { components: { DxForm }, data() { return { employee }; }, computed: { colCountByScreen() { return { xs: 1, sm: 2, md: 3 lg: 4 }; } }, methods: { screenByWidth(width) { if (width < 768) return 'xs'; if (width < 992) return 'sm'; if (width < 1200) return 'md'; return 'lg'; } } }; </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import Form from 'devextreme-react/form'; const employee = { firstName: 'John', lastName: 'Heart', position: 'CEO', hireDate: new Date(2012, 4, 13) }; const colCountByScreen = { xs: 1, sm: 2, md: 3 lg: 4 }; class App extends React.Component { render() { return ( <Form formData={employee} colCountByScreen={colCountByScreen} screenByWidth={screenByWidth} /> ); } } function screenByWidth(width) { if (width < 768) return 'xs'; if (width < 992) return 'sm'; if (width < 1200) return 'md'; return 'lg'; } export default App;
See Also
If you have technical questions, please create a support ticket in the DevExpress Support Center.