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Data Grid
- Overview
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Data Binding
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Paging and Scrolling
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Editing
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Grouping
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Filtering and Sorting
- Focused Row
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Row Drag & Drop
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Selection
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Columns
- State Persistence
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Appearance
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Templates
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Data Summaries
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Master-Detail
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Export to PDF
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Export to Excel
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Adaptability
- Keyboard Navigation
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Pivot Grid
- Overview
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Data Binding
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Field Chooser
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Features
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Export to Excel
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Tree List
- Overview
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Data Binding
- Sorting
- Paging
-
Editing
- Node Drag & Drop
- Focused Row
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Selection
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Filtering
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Column Customization
- State Persistence
- Adaptability
- Keyboard Navigation
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Scheduler
- Overview
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Data Binding
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Views
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Features
- Virtual Scrolling
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Grouping
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Customization
- Adaptability
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Html Editor
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Chat
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Diagram
- Overview
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Data Binding
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Featured Shapes
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Custom Shapes
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Document Capabilities
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User Interaction
- UI Customization
- Adaptability
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Charts
- Overview
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Data Binding
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Area Charts
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Bar Charts
- Bullet Charts
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Doughnut Charts
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Financial Charts
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Line Charts
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Pie Charts
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Point Charts
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Polar and Radar Charts
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Range Charts
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Sparkline Charts
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Tree Map
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Funnel and Pyramid Charts
- Sankey Chart
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Combinations
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More Features
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Export
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Selection
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Tooltips
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Zooming
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Gantt
- Overview
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Data
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UI Customization
- Strip Lines
- Export to PDF
- Sorting
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Filtering
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Gauges
- Overview
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Data Binding
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Bar Gauge
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Circular Gauge
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Linear Gauge
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Navigation
- Overview
- Accordion
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Menu
- Multi View
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Drawer
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Tab Panel
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Tabs
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Toolbar
- Pagination
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Tree View
- Right-to-Left Support
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Layout
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Tile View
- Splitter
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Gallery
- Scroll View
- Box
- Responsive Box
- Resizable
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Editors
- Overview
- Autocomplete
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Calendar
- Check Box
- Color Box
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Date Box
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Date Range Box
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Drop Down Box
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Number Box
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Select Box
- Switch
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Tag Box
- Text Area
- Text Box
- Validation
- Custom Text Editor Buttons
- Right-to-Left Support
- Editor Appearance Variants
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Forms and Multi-Purpose
- Overview
- Button Group
- Field Set
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Filter Builder
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Form
- Radio Group
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Range Selector
- Numeric Scale (Lightweight)
- Numeric Scale
- Date-Time Scale (Lightweight)
- Date-Time Scale
- Logarithmic Scale
- Discrete scale
- Custom Formatting
- Use Range Selection for Calculation
- Use Range Selection for Filtering
- Image on Background
- Chart on Background
- Customized Chart on Background
- Chart on Background with Series Template
- Range Slider
- Slider
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Sortable
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File Management
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File Manager
- Overview
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File System Types
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Customization
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File Uploader
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Actions and Lists
- Overview
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Action Sheet
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Button
- Floating Action Button
- Drop Down Button
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Context Menu
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List
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Lookup
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Maps
- Overview
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Map
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Vector Map
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Dialogs and Notifications
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Localization
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React Form - Customize Fields at Runtime
The Form component allows you to add/remove items and specify item visibility at runtime. The Form only updates the affected items and does not re-render the entire form.
In this demo, the "Show Address" checkbox specifies the visibility of address-related fields. Review the component's code to see how to set the "HomeAddress" group's visible attribute.
Click the "Add phone" button to add a new phone editor. This action adds a new item to the items array of the "phones" group. Each phone editor contains a button that deletes it from the items array and the Form.
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Backend API
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import React, { useCallback, useMemo, useState } from 'react';
import 'devextreme-react/text-area';
import Form, {
GroupItem, SimpleItem, Label, ButtonItem,
} from 'devextreme-react/form';
import service from './data.ts';
const employee = service.getEmployee();
const App = () => {
const [phones, setPhones] = useState(employee.Phones);
const [isHomeAddressVisible, setIsHomeAddressVisible] = useState(true);
const formData = useMemo(() => ({ ...employee, Phones: phones }), [phones]);
const CheckBoxOptions = useMemo(() => ({
text: 'Show Address',
value: isHomeAddressVisible,
onValueChanged: (e) => {
setIsHomeAddressVisible(e.component.option('value'));
},
}), [setIsHomeAddressVisible, isHomeAddressVisible]);
const generateNewPhoneOptions = useCallback((index: number) => ({
mask: '+1 (X00) 000-0000',
maskRules: { X: /[01-9]/ },
buttons: [{
name: 'trash',
location: 'after',
options: {
stylingMode: 'text',
icon: 'trash',
onClick: () => {
const newPhones = phones.slice(0, index).concat(phones.slice(index + 1));
setPhones(newPhones);
},
},
}],
}), [phones]);
const PhoneOptions = useMemo(() => {
const options: any[] = [];
for (let i = 0; i < phones.length; i += 1) {
options.push(generateNewPhoneOptions(i));
}
return options;
}, [phones, generateNewPhoneOptions]);
const PhoneButtonOptions = useMemo(() => ({
icon: 'add',
text: 'Add phone',
onClick: () => {
setPhones((prevPhones) => [...prevPhones, '']);
},
}), []);
return (
<React.Fragment>
<div className="long-title"><h3>Personal details</h3></div>
<div className="form-container">
<Form
colCount={2}
id="form"
formData={formData}>
<GroupItem>
<GroupItem>
<GroupItem caption="Personal Data">
<SimpleItem dataField="FirstName" />
<SimpleItem dataField="LastName" />
<SimpleItem editorType="dxCheckBox" editorOptions={CheckBoxOptions} />
</GroupItem>
</GroupItem>
<GroupItem>
<GroupItem caption="Home Address"
name="HomeAddress"
visible={isHomeAddressVisible}>
<SimpleItem dataField="Address" />
<SimpleItem dataField="City" />
</GroupItem>
</GroupItem>
</GroupItem>
<GroupItem caption="Phones"
name="phones-container">
<GroupItem
name="phones">
{PhoneOptions.map((phone, index: number) => <SimpleItem
key={`Phones${index}`}
dataField={`Phones[${index}]`}
editorOptions={phone}>
<Label text={`Phone ${index + 1}`} />
</SimpleItem>)}
</GroupItem>
<ButtonItem
horizontalAlignment="left"
cssClass="add-phone-button"
buttonOptions={PhoneButtonOptions}>
</ButtonItem>
</GroupItem>
</Form>
</div>
</React.Fragment>
);
};
export default App;
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