grid-2.js

import { Grid, Input, Select } from 'react-spreadsheet-grid';

class GridContainer extends React.PureComponent {
    constructor(props) {
        super(props);
      
        // It is initially not loaded
        this.state = {
            loaded: false
        };
    }
    
    loadEmployees(pageNumber) {
        // Load an employees array through API
    }
  
    componentDidMount() {
        // Load the first part of employees
        this.page = 0;
        this.loadEmployees(this.page).then((employees) => {
            this.setState({
                employees
            });
        });
    }
  
    render() {
        // Show a loader while employees are loading
        if (!this.state.loaded) {
           return (
             <Loader />
           );
        } else {
          return (
            <Grid
                rows={this.state.employees}
                columns={this.state.columns}
            />
          );
        }
    }
}

export default GridContainer;