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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
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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
-
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
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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.
To give you the ability to edit code on the fly, the demo uses SystemJS. For this reason, launching the demo takes some time. We strongly recommend that you do not use this approach in real projects.
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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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