State persistence in React Query Builder component

2 Mar 20265 minutes to read

State persistence automatically saves the Query Builder’s configuration in the browser’s local storage, preserving the rule object across page refreshes and navigation. Enable this feature by setting enablePersistence to true. This is particularly useful for long-form queries or multi-step workflows where users should not lose their progress.

app.jsx

import { QueryBuilderComponent } from '@syncfusion/ej2-react-querybuilder';
import * as React from 'react';
import * as ReactDom from 'react-dom';
// @ts-ignore
import { hardwareData } from './datasource';
function App() {
    let columnData = [
        { field: 'TaskID', label: 'Task ID', type: 'number' },
        { field: 'Name', label: 'Name', type: 'string' },
        { field: 'Category', label: 'Category', type: 'string' },
        { field: 'SerialNo', label: 'Serial No', type: 'string' },
        { field: 'InvoiceNo', label: 'Invoice No', type: 'string' },
        { field: 'Status', label: 'Status', type: 'string' }
    ];
    let importRules = {
        'condition': 'or',
        'rules': [{
                'field': 'Category',
                'label': 'Category',
                'operator': 'equal',
                'type': 'string',
                'value': 'Laptop'
            }]
    };
    return (<QueryBuilderComponent width='100%' enablePersistence={true} dataSource={hardwareData} columns={columnData} rule={importRules}/>);
}
export default App;
ReactDom.render(<App />, document.getElementById('querybuilder'));

app.tsx

import { ColumnsModel, QueryBuilderComponent, RuleModel } from '@syncfusion/ej2-react-querybuilder';
import * as React from 'react';
import * as ReactDom from 'react-dom';
// @ts-ignore
import { hardwareData } from './datasource';

function App() {

    let columnData: ColumnsModel[] = [
        { field: 'TaskID', label: 'Task ID', type: 'number' },
        { field: 'Name', label: 'Name', type: 'string' },
        { field: 'Category', label: 'Category', type: 'string' },
        { field: 'SerialNo', label: 'Serial No', type: 'string' },
        { field: 'InvoiceNo', label: 'Invoice No', type: 'string' },
        { field: 'Status', label: 'Status', type: 'string' }
    ];
    let importRules: RuleModel = {
        'condition': 'or',
        'rules': [{
            'field': 'Category',
            'label': 'Category',
            'operator': 'equal',
            'type': 'string',
            'value': 'Laptop'
        }]
    };

    return (
        <QueryBuilderComponent width='100%' enablePersistence={true} dataSource={hardwareData} columns={columnData} rule={importRules} />
    );
}
export default App;
ReactDom.render(<App />,document.getElementById('querybuilder'));