How to render with rules in React Query Builder UI

Initialize the React Query Builder UI with predefined rules using the rule property. This allows you to load saved or template-based query conditions on component initialization. The rule property accepts a RuleModel object whose structure mirrors the input of the setRules method.

Rule JSON shape

A minimal rule object contains a top-level condition and a rules array. Each item in rules can be either a condition (a group) or a leaf condition:

The rule property is read at component initialization. To replace the rule set after the component is mounted, use the setRules method.

import { QueryBuilderComponent } from '@syncfusion/ej2-react-querybuilder';
import * as React from 'react';
import * as ReactDom from 'react-dom';
// @ts-ignore
import { employeeData } from './datasource';
function App() {
    let columnData = [
        { field: 'EmployeeID', label: 'EmployeeID', type: 'number' },
        { field: 'FirstName', label: 'FirstName', type: 'string' },
        { field: 'TitleOfCourtesy', label: 'Title Of Courtesy', type: 'boolean', values: ['Mr.', 'Mrs.'] },
        { field: 'Title', label: 'Title', type: 'string' },
        { field: 'HireDate', label: 'HireDate', type: 'date', format: 'dd/MM/yyyy' },
        { field: 'Country', label: 'Country', type: 'string' },
        { field: 'City', label: 'City', type: 'string' }
    ];
    let importRules = {
        'condition': 'and',
        'rules': [{
                'field': 'EmployeeID',
                'label': 'EmployeeID',
                'operator': 'equal',
                'type': 'number',
                'value': 1001
            },
            {
                'field': 'Title',
                'label': 'Title',
                'operator': 'equal',
                'type': 'string',
                'value': 'Sales Manager'
            }]
    };
    return (<QueryBuilderComponent width='100%' dataSource={employeeData} columns={columnData} rule={importRules}/>);
}
export default App;
ReactDom.render(<App />, document.getElementById('querybuilder'));
import { ColumnsModel, QueryBuilderComponent, RuleModel } from '@syncfusion/ej2-react-querybuilder';
import * as React from 'react';
import * as ReactDom from 'react-dom';
// @ts-ignore
import { employeeData } from './datasource';


function App() {

    let columnData: ColumnsModel[] = [
        { field: 'EmployeeID', label: 'EmployeeID', type: 'number' },
        { field: 'FirstName', label: 'FirstName', type: 'string' },
        { field: 'TitleOfCourtesy', label: 'Title Of Courtesy', type: 'boolean', values: ['Mr.', 'Mrs.'] },
        { field: 'Title', label: 'Title', type: 'string' },
        { field: 'HireDate', label: 'HireDate', type: 'date', format: 'dd/MM/yyyy' },
        { field: 'Country', label: 'Country', type: 'string' },
        { field: 'City', label: 'City', type: 'string' }
    ];
    let importRules: RuleModel = {
        'condition': 'and',
        'rules': [{
            'field': 'EmployeeID',
            'label': 'EmployeeID',
            'operator': 'equal',
            'type': 'number',
            'value': 1001
        },
        {
            'field': 'Title',
            'label': 'Title',
            'operator': 'equal',
            'type': 'string',
            'value': 'Sales Manager'
        }]
    };

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

In this sample, the datasource (employeeData) is imported from a separate datasource TypeScript file.