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Data Grid
- Overview
-
Data Binding
-
Paging and Scrolling
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Editing
-
Grouping
-
Filtering and Sorting
- Focused Row
-
Row Drag & Drop
-
Selection
-
Columns
- State Persistence
-
Appearance
-
Templates
-
Data Summaries
-
Master-Detail
-
Export to PDF
-
Export to Excel
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Adaptability
- Keyboard Navigation
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Pivot Grid
- Overview
-
Data Binding
-
Field Chooser
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Features
-
Export to Excel
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Tree List
- Overview
-
Data Binding
- Sorting
- Paging
-
Editing
- Node Drag & Drop
- Focused Row
-
Selection
-
Filtering
-
Column Customization
- State Persistence
- Adaptability
- Keyboard Navigation
-
Scheduler
- Overview
-
Data Binding
-
Views
-
Features
- Virtual Scrolling
-
Grouping
-
Customization
- Adaptability
-
Html Editor
-
Chat
-
Diagram
- Overview
-
Data Binding
-
Featured Shapes
-
Custom Shapes
-
Document Capabilities
-
User Interaction
- UI Customization
- Adaptability
-
Charts
- Overview
-
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
-
Selection
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Tooltips
-
Zooming
-
-
Gantt
- Overview
-
Data
-
UI Customization
- Strip Lines
- Export to PDF
- Sorting
-
Filtering
-
Gauges
- Overview
-
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
-
List
-
Lookup
-
Maps
- Overview
-
Map
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Vector Map
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Dialogs and Notifications
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Localization
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React Drop Down Box - Multiple Selection
DropDownBox is an advanced editor whose drop-down window can include other components.
DevExtreme ships with multiple other drop-down editors. To find out which editor best suits your task, review the following article: How to Choose a Drop-Down Editor.
If the UI component embedded into the DropDownBox component's drop-down window allows multiple selection, synchronize the component's value with the state of selected items as demonstrated in the following demo: Single Selection.
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Backend API
x
import React, { useCallback, useRef, useState } from 'react';
import DropDownBox, { DropDownBoxTypes } from 'devextreme-react/drop-down-box';
import TreeView, { TreeViewRef } from 'devextreme-react/tree-view';
import DataGrid, {
Selection,
Paging,
FilterRow,
Scrolling,
DataGridTypes,
} from 'devextreme-react/data-grid';
import CustomStore from 'devextreme/data/custom_store';
import 'whatwg-fetch';
const gridColumns = ['CompanyName', 'City', 'Phone'];
const ownerLabel = { 'aria-label': 'Owner' };
const makeAsyncDataSource = (jsonFile: string) =>
new CustomStore({
loadMode: 'raw',
key: 'ID',
load() {
return fetch(`data/${jsonFile}`).then((response) => response.json());
},
});
const treeDataSource = makeAsyncDataSource('treeProducts.json');
const gridDataSource = makeAsyncDataSource('customers.json');
function App() {
const [treeBoxValue, setTreeBoxValue] = useState(['1_1']);
const [gridBoxValue, setGridBoxValue] = useState([3]);
const treeViewRef = useRef<TreeViewRef>();
const treeViewRender = useCallback(
() => (
<TreeView
dataSource={treeDataSource}
ref={treeViewRef}
dataStructure="plain"
keyExpr="ID"
parentIdExpr="categoryId"
selectionMode="multiple"
showCheckBoxesMode="normal"
selectNodesRecursive={false}
displayExpr="name"
selectByClick={true}
onContentReady={syncTreeViewSelection}
onItemSelectionChanged={treeViewItemSelectionChanged}
/>
),
[treeDataSource],
);
const dataGridRender = useCallback(
() => (
<DataGrid
height={345}
dataSource={gridDataSource}
columns={gridColumns}
hoverStateEnabled={true}
selectedRowKeys={gridBoxValue}
onSelectionChanged={dataGridOnSelectionChanged}
>
<Selection mode="multiple" />
<Scrolling mode="virtual" />
<Paging
enabled={true}
pageSize={10}
/>
<FilterRow visible={true} />
</DataGrid>
),
[gridDataSource, gridBoxValue],
);
const syncTreeViewSelection = useCallback(
(e: DropDownBoxTypes.ValueChangedEvent | any) => {
const treeView = (e.component.selectItem && e.component)
|| (treeViewRef.current && treeViewRef.current.instance());
if (treeView) {
if (e.value === null) {
treeView.unselectAll();
} else {
const values = e.value || treeBoxValue;
values && values.forEach((value) => {
treeView.selectItem(value);
});
}
}
if (e.value !== undefined) {
setTreeBoxValue(e.value);
}
},
[treeBoxValue],
);
const syncDataGridSelection = useCallback((e: DropDownBoxTypes.ValueChangedEvent) => {
setGridBoxValue(e.value || []);
}, []);
const treeViewItemSelectionChanged = useCallback(
(e: { component: { getSelectedNodeKeys: () => any } }) => {
setTreeBoxValue(e.component.getSelectedNodeKeys());
},
[],
);
const dataGridOnSelectionChanged = useCallback((e: DataGridTypes.SelectionChangedEvent) => {
setGridBoxValue((e.selectedRowKeys.length && e.selectedRowKeys) || []);
}, []);
return (
<div className="dx-fieldset">
<div className="dx-field">
<div className="dx-field-label">DropDownBox with embedded TreeView</div>
<div className="dx-field-value">
<DropDownBox
value={treeBoxValue}
valueExpr="ID"
inputAttr={ownerLabel}
displayExpr="name"
placeholder="Select a value..."
showClearButton={true}
dataSource={treeDataSource}
onValueChanged={syncTreeViewSelection}
contentRender={treeViewRender}
/>
</div>
</div>
<div className="dx-field">
<div className="dx-field-label">DropDownBox with embedded DataGrid</div>
<div className="dx-field-value">
<DropDownBox
value={gridBoxValue}
valueExpr="ID"
deferRendering={false}
inputAttr={ownerLabel}
displayExpr="CompanyName"
placeholder="Select a value..."
showClearButton={true}
dataSource={gridDataSource}
onValueChanged={syncDataGridSelection}
contentRender={dataGridRender}
/>
</div>
</div>
</div>
);
}
export default App;
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This demo uses the DataGrid's selection.mode and TreeView's selectionMode properties to enable multiple selection.