Remote data in React Grid component

28 Sep 202323 minutes to read

To bind remote data to grid component, assign service data as an instance of DataManager to the dataSource property. To interact with remote data source, provide the endpoint url.

App.jsx

import { DataManager } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent } from '@syncfusion/ej2-react-grids';
import * as React from 'react';
function App() {
    const data = new DataManager({
        url: 'https://services.syncfusion.com/react/production/api/Orders'
    });
    return <GridComponent dataSource={data} height={315}>
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' width='120' textAlign="Right"/>
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150'/>
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150'/>
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150'/>
        </ColumnsDirective>
    </GridComponent>;
}
;
export default App;

App.tsx

import { DataManager } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent } from '@syncfusion/ej2-react-grids';
import * as React from 'react';

function App() {
    const data = new DataManager({
        url: 'https://services.syncfusion.com/react/production/api/Orders'
    });
    return <GridComponent dataSource={data} height={315}>
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' width='120' textAlign="Right" />
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150' />
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150' />
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150' />
        </ColumnsDirective>
    </GridComponent>
};
export default App;

By default DataManager uses ODataAdaptor for remote data-binding.

OData adaptor - Binding OData service

OData is standardized protocol for creating and consuming data.
You can retrieve data from OData service using DataManager. You can refer to the following code example of remote Data binding using OData service.

App.jsx

import { DataManager, ODataAdaptor } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent } from '@syncfusion/ej2-react-grids';
import * as React from 'react';

function App() {
    const data = new DataManager({
        adaptor: new ODataAdaptor,
        url: 'https://services.odata.org/V3/Northwind/Northwind.svc/Orders/'
    });
    return <GridComponent dataSource={data} height={315}>
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' width='120' textAlign="Right"/>
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150'/>
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150'/>
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150'/>
        </ColumnsDirective>
    </GridComponent>;
}
;
export default App;

App.tsx

import { DataManager, ODataAdaptor } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent } from '@syncfusion/ej2-react-grids';
import * as React from 'react';

function App() {
    const data = new DataManager({
        adaptor: new ODataAdaptor,
        url: 'https://services.odata.org/V3/Northwind/Northwind.svc/Orders/'
    });
    return <GridComponent dataSource={data} height={315}>
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' width='120' textAlign="Right" />
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150' />
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150' />
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150' />
        </ColumnsDirective>
    </GridComponent>
};
export default App;

OData v4 adaptor - Binding OData v4 service

The ODataV4 is an improved version of OData protocols, and the DataManager can also retrieve and consume OData v4 services.
For more details on OData v4 services, refer to the odata documentation.
To bind OData v4 service, use the ODataV4Adaptor.

App.jsx

import { DataManager, ODataV4Adaptor } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent } from '@syncfusion/ej2-react-grids';
import * as React from 'react';
function App() {
    const data = new DataManager({
        adaptor: new ODataV4Adaptor,
        url: 'https://services.odata.org/V4/Northwind/Northwind.svc/Orders/?$top=7'
    });
    return <GridComponent dataSource={data}>
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' width='120' textAlign="Right"/>
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150'/>
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150'/>
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150'/>
        </ColumnsDirective>
    </GridComponent>;
}
;
export default App;

App.tsx

import { DataManager, ODataV4Adaptor } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent } from '@syncfusion/ej2-react-grids';
import * as React from 'react';

function App() {
    const data = new DataManager({
        adaptor: new ODataV4Adaptor,
        url: 'https://services.odata.org/V4/Northwind/Northwind.svc/Orders/?$top=7'
    });
    return <GridComponent dataSource={data}>
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' width='120' textAlign="Right" />
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150' />
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150' />
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150' />
        </ColumnsDirective>
    </GridComponent>
};
export default App;

Web API adaptor

You can use WebApiAdaptor to bind grid with Web API created using OData endpoint.

import { DataManager, WebApiAdaptor } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent } from '@syncfusion/ej2-react-grids';
import * as React from 'react';

function App() {
    const data = new DataManager({
        adaptor: new WebApiAdaptor,
        url: '/api/OrderApi'
    });
    return <GridComponent dataSource={data}>
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' width='120' textAlign="Right" />
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150' />
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150' />
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150' />
        </ColumnsDirective>
    </GridComponent>

};
export default App;

The response object should contain properties Items and Count whose values are collection of entities and total count of the entities respectively.

The sample response object should look like below.

{
    Items: [{..}, {..}, {..}, ...],
    Count: 830
}

Remote save adaptor

You may need to perform all Grid Actions in client-side except the CRUD operations, that should be interacted with server-side to persist data. It can be achieved in Grid by using RemoteSaveAdaptor.

Datasource must be set to json property and set RemoteSaveAdaptor to the adaptor property. CRUD operations can be mapped to server-side using updateUrl, insertUrl, removeUrl, batchUrl, crudUrl properties.

You can use the following code example to use RemoteSaveAdaptor in Grid.

import { DataManager, RemoteSaveAdaptor } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, Edit,  EditSettingsModel } from '@syncfusion/ej2-react-grids';
import { GridComponent, Inject, Toolbar, ToolbarItems } from '@syncfusion/ej2-react-grids';
import * as React from 'react';
import { data } from './datasource';

function App() {
    const dataSource = new DataManager({
        adaptor: new RemoteSaveAdaptor,
        insertUrl: '/Home/Insert',
        json: data,
        removeUrl: '/Home/Delete',
        updateUrl: '/Home/Update'
    });
    const toolbarOptions: ToolbarItems[] = ['Add', 'Edit', 'Delete', 'Update', 'Cancel'];
    const editSettings: EditSettingsModel = { allowEditing: true, allowAdding: true, allowDeleting: true };
    return <GridComponent dataSource={dataSource} editSettings={editSettings} toolbar={toolbarOptions}>
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' isPrimaryKey={true} width='120' textAlign="Right" />
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150' />
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150' />
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150' />
        </ColumnsDirective>
        <Inject services={[Edit, Toolbar]} />
    </GridComponent>
};
export default App;

The following code example describes the CRUD operations handled at server-side.

    const ActionResult Update = (OrdersDetails value) =>
    {
        ...
        return Json(value);
    }
    const ActionResult Insert = (OrdersDetails value) =>
    {
        ...
        return Json(value);
    }
    const ActionResult Delete = (int key) =>
    {
        ...
        return Json(data);
    }

Custom adaptor

You can create your own adaptor by extending the built-in adaptors. For the sake of demonstrating custom adaptor approach, we are going to see how to add serial number for the records by overriding the built-in response processing using processResponse method of the ODataAdaptor.

App.jsx

import { DataManager } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent } from '@syncfusion/ej2-react-grids';
import * as React from 'react';
import { SerialNoAdaptor } from './SerialNoAdaptor';
function App() {
    const data = new DataManager({
        adaptor: new SerialNoAdaptor,
        url: 'https://services.syncfusion.com/react/production/api/Orders'
    });
    return <GridComponent dataSource={data} height={315}>
        <ColumnsDirective>
            <ColumnDirective field='Sno' headerText='SNO' width='120' textAlign="Right"/>
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150'/>
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150'/>
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150'/>
        </ColumnsDirective>
    </GridComponent>;
}
;
export default App;

App.tsx

import { DataManager } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent } from '@syncfusion/ej2-react-grids';
import * as React from 'react';
import { SerialNoAdaptor } from './SerialNoAdaptor';

function App() {
    const data = new DataManager({
        adaptor: new SerialNoAdaptor,
        url: 'https://services.syncfusion.com/react/production/api/Orders'
    });
    return <GridComponent dataSource={data} height={315}>
        <ColumnsDirective>
            <ColumnDirective field='Sno' headerText='SNO' width='120' textAlign="Right" />
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150' />
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150' />
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150' />
        </ColumnsDirective>
    </GridComponent>

};
export default App;

SerialNoAdaptor.jsx

import { setValue } from '@syncfusion/ej2-base';
import { ODataAdaptor } from '@syncfusion/ej2-data';
export class SerialNoAdaptor extends ODataAdaptor {
    processResponse() {
        let i = 0;
        /* calling base class processResponse function */
        const original = super.processResponse.apply(this, arguments);
        /* Adding serial number */
        original.result.forEach((item) => setValue('Sno', ++i, item));
        return { result: original.result, count: original.count };
    }
}

SerialNoAdaptor.tsx

import { setValue } from '@syncfusion/ej2-base';
import { ODataAdaptor } from '@syncfusion/ej2-data';

export class SerialNoAdaptor extends ODataAdaptor {
    public processResponse() {
        let i = 0;
        /* calling base class processResponse function */
        const original = super.processResponse.apply(this, arguments);
        /* Adding serial number */
        original.result.forEach((item: any) => setValue('Sno', ++i, item));
        return { result: original.result, count: original.count };
    }
}

Offline mode

On remote data binding, all grid actions such as paging, sorting, editing, grouping, filtering, etc, will be processed on server-side.
To avoid post back for every action, set the grid to load all data on initialization and make the actions process in client-side.
To enable this behavior, use the offline property of DataManager.

App.jsx

import { DataManager, ODataAdaptor } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent, Group } from '@syncfusion/ej2-react-grids';
import { Inject, Page, Sort } from '@syncfusion/ej2-react-grids';
import * as React from 'react';
function App() {
    const data = new DataManager({
        adaptor: new ODataAdaptor,
        offline: true,
        url: 'https://services.syncfusion.com/react/production/api/Orders'
    });
    const page = { pageSize: 7 };
    return <GridComponent dataSource={data} allowPaging={true} allowGrouping={true} allowSorting={true} pageSettings={page}>
        <Inject services={[Page, Group, Sort]}/>
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' width='120' textAlign="Right"/>
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150'/>
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150'/>
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150'/>
        </ColumnsDirective>
    </GridComponent>;
}
;
export default App;

App.tsx

import { DataManager, ODataAdaptor } from '@syncfusion/ej2-data';
import { ColumnDirective, ColumnsDirective, GridComponent, Group } from '@syncfusion/ej2-react-grids';
import { Inject, Page, PageSettingsModel, Sort } from '@syncfusion/ej2-react-grids';
import * as React from 'react';

function App() {
    const data = new DataManager({
        adaptor: new ODataAdaptor,
        offline: true,
        url: 'https://services.syncfusion.com/react/production/api/Orders'
    });
    const page: PageSettingsModel = { pageSize: 7 };
    return <GridComponent dataSource={data} allowPaging={true} allowGrouping={true} allowSorting={true} pageSettings={page}>
        <Inject services={[Page, Group, Sort]} />
        <ColumnsDirective>
            <ColumnDirective field='OrderID' headerText='Order ID' width='120' textAlign="Right" />
            <ColumnDirective field='CustomerID' headerText='Customer ID' width='150' />
            <ColumnDirective field='ShipCity' headerText='Ship City' width='150' />
            <ColumnDirective field='ShipName' headerText='Ship Name' width='150' />
        </ColumnsDirective>
    </GridComponent>
};
export default App;