- Overview
- Getting Started
- UI Components
- Accordion
- ActionSheet
- Autocomplete
- BarGauge
- Box
- Bullet
- Button
- ButtonGroup
- Calendar
- Chart
- CheckBox
- CircularGauge
- ColorBox
- ContextMenu
- DataGrid
- Getting Started
- How To
- Enhance Performance on Large Datasets
- Columns
- Editing
- Sorting
- Filtering and Searching
- Paging
- Scrolling
- Grouping
- Selection
- User Interaction
- API
- Initial and Runtime Selection
- Clear Selection Settings
- Events
- Load Panel
- Master-Detail Interface
- Summaries
- Customize the Appearance
- Custom Keyboard Navigation
- Focused Row
- Bind a Lookup Column to a Custom Data Source
- Customize Header Filter Data Source
- Dynamically Change Editor Properties in the Editing State
- Dynamically Change Form Item Properties in the Editing State
- API
- Demos
- Accessibility
- DateBox
- DateRangeBox
- DeferRendering
- Diagram
- Draggable
- Drawer
- DropDownBox
- DropDownButton
- FileManager
- FileUploader
- FilterBuilder
- Floating Action Button
- Form
- Funnel
- Gallery
- Gantt
- HtmlEditor
- LinearGauge
- List
- LoadIndicator
- LoadPanel
- Lookup
- Map
- Menu
- MultiView
- NumberBox
- PieChart
- PivotGrid
- PivotGridFieldChooser
- PolarChart
- Popover
- Popup
- ProgressBar
- RadioGroup
- RangeSelector
- RangeSlider
- Resizable
- ResponsiveBox
- Sankey
- Scheduler
- ScrollView
- SelectBox
- Slider
- Sortable
- Sparkline
- Switch
- TabPanel
- Tabs
- TagBox
- TextArea
- TextBox
- TileView
- Toast
- Toolbar
- Tooltip
- TreeList
- TreeMap
- TreeView
- VectorMap
- Common Types
- Utilities
- Data Binding
- Data Validation
- Localization and Globalization
- UI Customization
- React Application Template
- DevExtreme CLI
- Data Analytics and BI
- .NET Backend Solutions
- Advanced Topics
- Troubleshooting
- Migrate to the New Version
Documentation Menu
- React Documentation
- UI Components
- DataGrid
- How To
- Selection
- React Documentation
- UI Components
- DataGrid
- How To
- Selection
NOTE
You must specify the DataGrid's keyExpr or the Store's key property to ensure that selection works properly.
See Also
- key in ArrayStore | CustomStore | LocalStore | ODataStore
User Interaction
The DataGrid UI component supports single and multiple row selection. Use the selection.mode property to change the current mode.
jQuery
JavaScript
$(function() { $("#dataGridContainer").dxDataGrid({ // ... selection: { mode: "single" // or "multiple" | "none" } });});Angular
HTML
TypeScript
<dx-data-grid ... > <dxo-selection mode="single"> <!-- "multiple" | "none" --> </dxo-selection></dx-data-grid>
import { DxDataGridModule } from "devextreme-angular";// ...export class AppComponent { // ...}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... > <DxSelection mode="single" /> <!-- "multiple" | "none" --> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid, { DxSelection} from 'devextreme-vue/data-grid';export default { components: { DxDataGrid, DxSelection }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid, { Selection} from 'devextreme-react/data-grid';class App extends React.Component { render() { return ( <DataGrid ... > <Selection mode="single" /> {/* "multiple" | "none" */} </DataGrid> ); }}export default App;In the single mode, only one row can be selected at a time, while in the multiple mode, several rows can be selected with check boxes that appear in the selection column.
The check box in the column's header selects all rows or only the currently rendered ones, depending on the selectAllMode. Note that clicking this check box selects/deselects only those rows that meet filtering conditions if a filter is applied.
jQuery
JavaScript
$(function() { $("#dataGridContainer").dxDataGrid({ // ... selection: { mode: "multiple", selectAllMode: "page" // or "allPages" } });});Angular
HTML
TypeScript
<dx-data-grid ... > <dxo-selection mode="multiple" selectAllMode="page"> <!-- or "allPages" --> </dxo-selection></dx-data-grid>
import { DxDataGridModule } from "devextreme-angular";// ...export class AppComponent { // ...}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... > <DxSelection mode="single" select-all-mode="page" /> <!-- or "allPages" --> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid, { DxSelection} from 'devextreme-vue/data-grid';export default { components: { DxDataGrid, DxSelection }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid, { Selection} from 'devextreme-react/data-grid';class App extends React.Component { render() { return ( <DataGrid ... > <Selection mode="single" selectAllMode="page" /> {/* or "allPages" */} </DataGrid> ); }}export default App;You can prevent users from selecting all rows by setting the selection.allowSelectAll property to false.
jQuery
JavaScript
$(function() { $("#dataGridContainer").dxDataGrid({ // ... selection: { mode: "multiple", allowSelectAll: false } });});Angular
HTML
TypeScript
<dx-data-grid ... > <dxo-selection mode="multiple" [allowSelectAll]="false"> </dxo-selection></dx-data-grid>
import { DxDataGridModule } from "devextreme-angular";// ...export class AppComponent { // ...}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... > <DxSelection mode="multiple" :allow-select-all="false" /> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid, { DxSelection} from 'devextreme-vue/data-grid';export default { components: { DxDataGrid, DxSelection }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid, { Selection} from 'devextreme-react/data-grid';class App extends React.Component { render() { return ( <DataGrid ... > <Selection mode="multiple" allowSelectAll={false} /> </DataGrid> ); }}export default App;The showCheckBoxesMode the property specifies when the UI component renders checkboxes in the selection column. For example, the following code tells the UI component to never render them, though a user can still select rows using keyboard shortcuts:
jQuery
JavaScript
$(function() { $("#dataGridContainer").dxDataGrid({ // ... selection: { mode: "multiple", showCheckBoxesMode: "none" // or "onClick" | "onLongTap" | "always" } });});Angular
HTML
TypeScript
<dx-data-grid ... > <dxo-selection mode="multiple" showCheckBoxesMode="none"> <!-- or "onClick" | "onLongTap" | "always" --> </dxo-selection></dx-data-grid>
import { DxDataGridModule } from "devextreme-angular";// ...export class AppComponent { // ...}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... > <DxSelection mode="multiple" :show-check-boxes-mode="none" /> <!-- or "onClick" | "onLongTap" | "always" --> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid, { DxSelection} from 'devextreme-vue/data-grid';export default { components: { DxDataGrid, DxSelection }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid, { Selection} from 'devextreme-react/data-grid';class App extends React.Component { render() { return ( <DataGrid ... > <Selection mode="multiple" showCheckBoxesMode="none" /> {/* or "onClick" | "onLongTap" | "always" */} </DataGrid> ); }}export default App;Single Selection DemoMultiple Selection Demo
See Also
- remoteOperations
- Deferred Selection
API
Initial and Runtime Selection
Use the selectedRowKeys property to select rows initially. Note that to access a row by its key, you should specify the DataGrid's keyExpr or the Store's key property.
jQuery
JavaScript
$(function() { $("#dataGridContainer").dxDataGrid({ // ... dataSource: { store: { // ... key: "id" } }, selectedRowKeys: [1, 5, 18] });});Angular
HTML
TypeScript
<dx-data-grid [dataSource]="dataGridDataSource" [selectedRowKeys]="[1, 5, 18]"></dx-data-grid>
import { DxDataGridModule } from "devextreme-angular";import DataSource from "devextreme/data/data_source";import "devextreme/data/array_store";// or// import "devextreme/data/odata/store";// import "devextreme/data/custom_store";// ...export class AppComponent { dataGridDataSource = new DataSource({ store: { // ... key: "id" } });}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... :data-source="dataGridDataSource" :selected-row-keys="[1, 5, 18]"> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid from 'devextreme-vue/data-grid';import DataSource from 'devextreme/data/data_source';import 'devextreme/data/array_store';// or// import 'devextreme/data/odata/store';// import 'devextreme/data/custom_store';const dataGridDataSource = new DataSource({ store: { // ... key: 'id' }});export default { components: { DxDataGrid }, data() { return { dataGridDataSource } }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid from 'devextreme-react/data-grid';import DataSource from 'devextreme/data/data_source';import 'devextreme/data/array_store';// or// import 'devextreme/data/odata/store';// import 'devextreme/data/custom_store';const dataGridDataSource = new DataSource({ store: { // ... key: 'id' }});class App extends React.Component { selectedRowKeys = [1, 5, 18]; render() { return ( <DataGrid ... dataSource={dataGridDataSource} defaultSelectedRowKeys={this.selectedRowKeys}> </DataGrid> ); }}export default App;The DataGrid provides two methods that select rows at runtime: selectRows(keys, preserve) and selectRowsByIndexes(indexes). They both clear the previous selection by default, although with the selectRows(keys, preserve) method you can keep it if you pass true as the preserve parameter. Before selecting a row, you can call the isRowSelected(key) method to check if this row is not already selected.
jQuery
JavaScript
var selectSingleRow = function (dataGridInstance, key, preserve) { if (!dataGridInstance.isRowSelected(key)) { dataGridInstance.selectRows([key], preserve); }}JavaScript
$("#dataGridContainer").dxDataGrid({ // ... onContentReady: function (e) { // Selects the first visible row e.component.selectRowsByIndexes([0]); }}).dxDataGrid("instance");Angular
TypeScript
HTML
import { ..., ViewChild } from "@angular/core";import { DxDataGridModule, DxDataGridComponent } from "devextreme-angular";// ...export class AppComponent { @ViewChild(DxDataGridComponent, { static: false }) dataGrid: DxDataGridComponent; // Prior to Angular 8 // @ViewChild(DxDataGridComponent) dataGrid: DxDataGridComponent; selectSingleRow (key, preserve) { if (!this.dataGrid.instance.isRowSelected(key)) { this.dataGrid.instance.selectRows([key], preserve); } } onContentReadyHandler (e) { // Selects the first visible row e.component.selectRowsByIndexes([0]); }}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})<dx-data-grid ... (onContentReady)="onContentReadyHandler($event)"></dx-data-grid>
Vue
App.vue
<template> <DxDataGrid ... v-model:selected-row-keys="selectedRowKeys" @content-ready="selectFirstRow"> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid from 'devextreme-vue/data-grid';export default { components: { DxDataGrid }, data() { return { selectedRowKeys: [] } }, methods: { selectFirstRow(e) { const rowKey = e.component.getKeyByRowIndex(0); this.selectedRowKeys = [...this.selectedRowKeys, rowKey]; } }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid from 'devextreme-react/data-grid';class App extends React.Component { constructor(props) { super(props); this.state = { selectedRowKeys: [] } this.selectFirstRow = this.selectFirstRow.bind(this); this.handleOptionChange = this.handleOptionChange.bind(this); } selectFirstRow(e) { const rowKey = e.component.getKeyByRowIndex(0); this.setState(prevState => ({ selectedRowKeys: [...prevState.selectedRowKeys, rowKey] })); } handleOptionChange(e) { if(e.fullName === 'selectedRowKeys') { this.setState({ selectedRowKeys: e.value }); } } render() { return ( <DataGrid ... selectedRowKeys={this.state.selectedRowKeys} onContentReady={this.selectFirstRow} onOptionChanged={this.handleOptionChange}> </DataGrid> ); }}export default App;To select all rows at once, call the selectAll() method.
jQuery
JavaScript
dataGrid.selectAll();
Angular
TypeScript
import { ..., ViewChild } from "@angular/core";import { DxDataGridModule, DxDataGridComponent } from "devextreme-angular";// ...export class AppComponent { @ViewChild(DxDataGridComponent, { static: false }) dataGrid: DxDataGridComponent; // Prior to Angular 8 // @ViewChild(DxDataGridComponent) dataGrid: DxDataGridComponent; selectAllRows () { this.dataGrid.instance.selectAll(); }}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... :ref="dataGridRefKey"> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid from 'devextreme-vue/data-grid';const dataGridRefKey = 'my-data-grid';export default { components: { DxDataGrid }, data() { return { dataGridRefKey } }, methods: { selectAllRows() { this.dataGrid.selectAll(); } }, computed: { dataGrid: function() { return this.$refs[dataGridRefKey].instance; } }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid from 'devextreme-react/data-grid';class App extends React.Component { constructor(props) { super(props); this.dataGridRef = React.createRef(); this.selectAllRows = () => { this.dataGrid.selectAll(); } } get dataGrid() { return this.dataGridRef.current.instance; } render() { return ( <DataGrid ... ref={this.dataGridRef}> </DataGrid> ); }}export default App;View Demo
Call the getSelectedRowKeys() or getSelectedRowsData() method to get the selected row's keys or data.
jQuery
JavaScript
var dataGrid = $("#dataGridContainer").dxDataGrid("instance");var selectedKeys = dataGrid.getSelectedRowKeys();var selectedData = dataGrid.getSelectedRowsData();Angular
TypeScript
import { ..., ViewChild } from "@angular/core";import { DxDataGridModule, DxDataGridComponent } from "devextreme-angular";// ...export class AppComponent { @ViewChild(DxDataGridComponent, { static: false }) dataGrid: DxDataGridComponent; // Prior to Angular 8 // @ViewChild(DxDataGridComponent) dataGrid: DxDataGridComponent; getSelectedRowKeys () { return this.dataGrid.instance.getSelectedRowKeys(); } getSelectedRowsData () { return this.dataGrid.instance.getSelectedRowsData(); }}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... :ref="dataGridRefKey"> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid from 'devextreme-vue/data-grid';const dataGridRefKey = 'my-data-grid';export default { components: { DxDataGrid }, data() { return { dataGridRefKey } }, methods: { getSelectedRowKeys() { return this.dataGrid.getSelectedRowKeys(); }, getSelectedRowsData() { return this.dataGrid.getSelectedRowsData(); } }, computed: { dataGrid: function() { return this.$refs[dataGridRefKey].instance; } }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid from 'devextreme-react/data-grid';class App extends React.Component { constructor(props) { super(props); this.dataGridRef = React.createRef(); this.getSelectedRowKeys = () => { return this.dataGrid.getSelectedRowKeys(); } this.getSelectedRowsData = () => { return this.dataGrid.getSelectedRowsData(); } } get dataGrid() { return this.dataGridRef.current.instance; } render() { return ( <DataGrid ... ref={this.dataGridRef}> </DataGrid> ); }}export default App;See Also
- Deferred Selection
Clear Selection Settings
Call the deselectRows(keys) method to clear the selection of specific rows.
jQuery
JavaScript
$("#dataGridContainer").dxDataGrid("deselectRows", [1, 4, 10]);Angular
TypeScript
import { ..., ViewChild } from "@angular/core";import { DxDataGridModule, DxDataGridComponent } from "devextreme-angular";// ...export class AppComponent { @ViewChild(DxDataGridComponent, { static: false }) dataGrid: DxDataGridComponent; // Prior to Angular 8 // @ViewChild(DxDataGridComponent) dataGrid: DxDataGridComponent; deselectRows (keys) { this.dataGrid.instance.deselectRows(keys); }}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... v-model:selected-row-keys="selectedRowKeys"> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid from 'devextreme-vue/data-grid';export default { components: { DxDataGrid }, data() { return { selectedRowKeys: [] } }, methods: { deselectRows(keys) { let selectedRowKeys = this.selectedRowKeys; keys.forEach(function(item) { const index = selectedRowKeys.indexOf(item); if (index !== -1) { const newRowKeys = [...this.selectedRowKeys]; newRowKeys.splice(index, 1); this.selectedRowKeys = newRowKeys; } }); } }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid from 'devextreme-react/data-grid';class App extends React.Component { constructor(props) { super(props); this.state = { selectedRowKeys: [] } this.deselectRows = this.deselectRows.bind(this); this.handleOptionChange = this.handleOptionChange.bind(this); } deselectRows(keys) { let selectedRowKeys = [...this.state.selectedRowKeys]; keys.forEach(function(item) { const index = selectedRowKeys.indexOf(item); if (index !== -1) { selectedRowKeys.splice(index, 1); } }); this.setState({ selectedRowKeys: selectedRowKeys }); } handleOptionChange(e) { if(e.fullName === 'selectedRowKeys') { this.setState({ selectedRowKeys: e.value }); } } render() { return ( <DataGrid ... selectedRowKeys={this.state.selectedRowKeys} onOptionChanged={this.handleOptionChange}> </DataGrid> ); }}export default App;Call the clearSelection() method to clear selection of all rows. If you apply a filter and want to keep the selection of invisible rows that do not meet the filtering conditions, use the deselectAll() method. Also call this method to clear selection depending on the selectAllMode.
jQuery
JavaScript
var dataGrid = $("#dataGridContainer").dxDataGrid("instance");dataGrid.deselectAll();dataGrid.clearSelection();Angular
TypeScript
import { ..., ViewChild } from "@angular/core";import { DxDataGridModule, DxDataGridComponent } from "devextreme-angular";// ...export class AppComponent { @ViewChild(DxDataGridComponent, { static: false }) dataGrid: DxDataGridComponent; // Prior to Angular 8 // @ViewChild(DxDataGridComponent) dataGrid: DxDataGridComponent; deselectVisibleRows () { this.dataGrid.instance.deselectAll(); } deselectAllRows () { this.dataGrid.instance.clearSelection(); }}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... ref="dataGrid" v-model:selected-row-keys="selectedRowKeys"> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid from 'devextreme-vue/data-grid';export default { components: { DxDataGrid }, data() { return { selectedRowKeys: [] } }, methods: { deselectAllRows() { this.selectedRowKeys = []; }, deselectVisibleRows() { this.$refs['dataGrid'].instance.deselectAll(); } }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid from 'devextreme-react/data-grid';class App extends React.Component { constructor(props) { super(props); this.state = { selectedRowKeys: [] } this.dataGridRef = React.createRef(); this.deselectAllRows = this.deselectAllRows.bind(this); this.deselectVisibleRows = this.deselectVisibleRows.bind(this); } deselectAllRows() { this.setState({ selectedRowKeys: [] }); } deselectVisibleRows() { this.dataGridRef.current.instance.deselectAll(); } handleOptionChange(e) { if(e.fullName === 'selectedRowKeys') { this.setState({ selectedRowKeys: e.value }); } } render() { return ( <DataGrid ... ref="dataGridRef" selectedRowKeys={this.state.selectedRowKeys} onOptionChanged={this.handleOptionChange}> </DataGrid> ); }}export default App;View Demo
See Also
- remoteOperations
jQuery
- Call Methods
Angular
- Call Methods
Vue
- Call Methods
React
- Call Methods
Events
The DataGrid UI component raises the selectionChanged event when a row is selected, or the selection is cleared. If the function that handles this event is going to remain unchanged, assign it to the onSelectionChanged property when you configure the UI component. Note that information on selected and deselected rows is passed to the handler only when selection is not deferred.
jQuery
JavaScript
$(function() { $("#dataGridContainer").dxDataGrid({ onSelectionChanged: function(e) { // Handler of the "selectionChanged" event var currentSelectedRowKeys = e.currentSelectedRowKeys; var currentDeselectedRowKeys = e.currentDeselectedRowKeys; var allSelectedRowKeys = e.selectedRowKeys; var allSelectedRowsData = e.selectedRowsData; // ... } });});Angular
HTML
TypeScript
<dx-data-grid ... (onSelectionChanged)="onSelectionChanged($event)"></dx-data-grid>
import { DxDataGridModule } from "devextreme-angular";// ...export class AppComponent { onSelectionChanged (e) { // Handler of the "selectionChanged" event const currentSelectedRowKeys = e.currentSelectedRowKeys; const currentDeselectedRowKeys = e.currentDeselectedRowKeys; const allSelectedRowKeys = e.selectedRowKeys; const allSelectedRowsData = e.selectedRowsData; // ... }}@NgModule({ imports: [ // ... DxDataGridModule ], // ...})Vue
App.vue
<template> <DxDataGrid ... @selection-changed="onSelectionChanged"> </DxDataGrid></template><script>import 'devextreme/dist/css/dx.light.css';import DxDataGrid from 'devextreme-vue/data-grid';export default { components: { DxDataGrid }, methods: { onSelectionChanged(e) { const currentSelectedRowKeys = e.currentSelectedRowKeys; const currentDeselectedRowKeys = e.currentDeselectedRowKeys; const allSelectedRowKeys = e.selectedRowKeys; const allSelectedRowsData = e.selectedRowsData; // ... } }}</script>React
App.js
import React from 'react';import 'devextreme/dist/css/dx.light.css';import DataGrid from 'devextreme-react/data-grid';class App extends React.Component { constructor(props) { super(props); this.onSelectionChanged = this.onSelectionChanged.bind(this); } onSelectionChanged(e) { const currentSelectedRowKeys = e.currentSelectedRowKeys; const currentDeselectedRowKeys = e.currentDeselectedRowKeys; const allSelectedRowKeys = e.selectedRowKeys; const allSelectedRowsData = e.selectedRowsData; // ... } render() { return ( <DataGrid ... onSelectionChanged={this.onSelectionChanged}> </DataGrid> ); }}export default App;jQuery
If you are going to change the event handler at runtime, or if you need to attach several handlers to the event, subscribe to it using the on(eventName, eventHandler) method.
JavaScript
var selectionChangedEventHandler1 = function(e) { // First handler of the "selectionChanged" event};var selectionChangedEventHandler2 = function(e) { // Second handler of the "selectionChanged" event};$("#dataGridContainer").dxDataGrid("instance") .on("selectionChanged", selectionChangedEventHandler1) .on("selectionChanged", selectionChangedEventHandler2);See Also
jQuery
- Handle Events
Angular
- Event Handling
Vue
- Event Handling
React
- Event Handling
Was this topic helpful?
Feel free toshare topic-related thoughts here.
Ifyou have technical questions, please create asupport ticket inthe DevExpress Support Center.
Thank you for the feedback!
