Record Paging
The DataGrid splits records into multiple pages. This technique helps optimize control performance: the client only needs to load and render one page at a time. Users can use a scroll bar or a pager to navigate between pages. This demo shows how to enable and customize the pager.
The pager is configured in the pager object and contains the following elements:
-
Page navigator
Enables page navigation. -
Page size selector
Changes the page size. To display this element, enable the showPageSizeSelector property. You can also define the allowedPageSizes and specify the initial pageSize in the paging object. -
Page information
Displays the current page number and total record count. To display page information, enable the showInfo property. You can also use the infoText property to customize the information text string.
The pager supports full, compact, and adaptive (default) display modes. In compact mode, the pager hides page information and changes the appearance of other elements to use screen space more efficiently. In adaptive mode, the pager automatically chooses between the full and compact modes based on the DataGrid's width. Use the displayMode property to switch between modes.
In this demo, you can use the drop-down Display Mode menu to switch between full and compact display modes. You can also use the checkboxes to hide or display different pager elements. Note that when the pager is in compact mode, navigation buttons are always visible but page information is hidden.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
Thank you!
We appreciate your feedback.
We appreciate your feedback.
import React from 'react';
import DataGrid, { Scrolling, Pager, Paging } from 'devextreme-react/data-grid';
import { generateData } from './data.js';
import SelectBox from 'devextreme-react/select-box';
import CheckBox from 'devextreme-react/check-box';
const displayModes = [{ text: 'Display Mode \'full\'', value: 'full' }, { text: 'Display Mode \'compact\'', value: 'compact' }];
const allowedPageSizes = [5, 10, 'all'];
class App extends React.Component {
displayModeChange = (value) => {
this.setState({ ...this.state, displayMode: value });
}
showPageSizeSelectorChange = (value) => {
this.setState({ ...this.state, showPageSizeSelector: value });
}
showInfoChange = (value) => {
this.setState({ ...this.state, showInfo: value });
}
showNavButtonsChange = (value) => {
this.setState({ ...this.state, showNavButtons: value });
}
isCompactMode() {
return this.state.displayMode === 'compact';
}
customizeColumns(columns) {
columns[0].width = 70;
}
constructor(props) {
super(props);
this.state = {
displayMode: 'full',
showPageSizeSelector: true,
showInfo: true,
showNavButtons: true
};
}
render() {
return (
<div>
<DataGrid
id='gridContainer'
dataSource={generateData(100000)}
keyExpr="id"
showBorders={true}
customizeColumns={this.customizeColumns}
>
<Scrolling rowRenderingMode='virtual'></Scrolling>
<Paging defaultPageSize={10} />
<Pager
visible={true}
allowedPageSizes={allowedPageSizes}
displayMode={this.state.displayMode}
showPageSizeSelector={this.state.showPageSizeSelector}
showInfo={this.state.showInfo}
showNavigationButtons={this.state.showNavButtons} />
</DataGrid>
<div className='options'>
<div className='caption'>Options</div>
<div className='option-container'>
<div className='option'>
<SelectBox
id='displayModes'
items={displayModes}
displayExpr='text'
valueExpr='value'
value={this.state.displayMode}
onValueChange={this.displayModeChange} />
</div>
<div className='option'>
<CheckBox
id='showPageSizes'
text='Show Page Size Selector'
value={this.state.showPageSizeSelector}
onValueChange={this.showPageSizeSelectorChange} />
</div>
<div className='option'>
<CheckBox
id='showInfo'
text='Show Info Text'
value={this.state.showInfo}
onValueChange={this.showInfoChange}
disabled={this.isCompactMode()} />
</div>
<div className='option'>
<CheckBox
id='showNavButtons'
text='Show Navigation Buttons'
value={this.state.showNavButtons}
onValueChange={this.showNavButtonsChange}
disabled={this.isCompactMode()} />
</div>
</div>
</div>
</div>
);
}
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(
<App />,
document.getElementById('app')
);
<!DOCTYPE html>
<html>
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.1.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.1.4/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import('./index.js');
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
#gridContainer {
max-height: 800px;
}
.options {
margin-top: 20px;
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
position: relative;
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option-container {
display: flex;
margin: 0 auto;
justify-content: space-between;
}
.option {
margin-top: 10px;
display: flex;
align-items: center;
}
.option-caption {
white-space: nowrap;
margin: 0 8px;
}
let s = 123456789;
function random() {
s = (1103515245 * s + 12345) % 2147483647;
return s % (10 - 1);
}
export function generateData(count) {
let i;
const surnames = ['Smith', 'Johnson', 'Brown', 'Taylor', 'Anderson', 'Harris', 'Clark', 'Allen', 'Scott', 'Carter'];
const names = ['James', 'John', 'Robert', 'Christopher', 'George', 'Mary', 'Nancy', 'Sandra', 'Michelle', 'Betty'];
const gender = ['Male', 'Female'];
const items = [];
const startBirthDate = Date.parse('1/1/1975');
const endBirthDate = Date.parse('1/1/1992');
for(i = 0; i < count; i++) {
const birthDate = new Date(startBirthDate + Math.floor(
random() *
(endBirthDate - startBirthDate) / 10));
birthDate.setHours(12);
const nameIndex = random();
const item = {
id: i + 1,
firstName: names[nameIndex],
lastName: surnames[random()],
gender: gender[Math.floor(nameIndex / 5)],
birthDate: birthDate
};
items.push(item);
}
return items;
}
window.config = {
transpiler: 'plugin-babel',
meta: {
'devextreme/localization.js': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@17.0.2/umd/react.development.js',
'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.7.2/prop-types.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.27.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@21.1.4/cjs',
'devextreme-react': 'npm:devextreme-react@21.1.4',
'jszip': 'npm:jszip@3.6.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.1.4/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.1.19/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.1.42/dist/dx-gantt.js',
'@devextreme/vdom': 'npm:@devextreme/vdom@1.2.2',
'inferno': 'npm:inferno@7.4.8/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat@7.4.8/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.8/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom@1.0.7/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.8/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.8/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class@7.4.8/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras@7.4.8/dist/inferno-extras.min.js',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js'
},
packages: {
'devextreme': {
defaultExtension: 'js'
},
'@devextreme/vdom': {
defaultExtension: 'js'
},
'devextreme-react': {
main: 'index.js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
packageConfigPaths: [
"npm:@devextreme/*/package.json",
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
};
System.config(window.config);