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Lazy Loading

Hi, we are using the ejGrid and we're pretty happy with it in most ways.  We would like to load large amounts of data on the grid but control it with server-side paging to reduce load times on the client.  Do you have an example of using your grid with server-side paging?  Basically, we would like the grid to only load the records that are visible on the screen and then load more as you scroll to the bottom of the current set of records (i.e., infinite scrolling).

Can we implement this using your grid?  If so, can you give us an example in ReactJS?

Thank you!

5 Replies

MP Manivannan Padmanaban Syncfusion Team July 31, 2019 07:04 AM UTC

Hi Pat, 

Greetings from Syncfusion Support. 

Query: Server Side paging with infinite scrolling. 

In grid, we can achieve the server side paging using urlAdaptor and for infinite scrolling we suggest you to use enableVirtualization feature of ejGrid. Kindly refer the below code example, 

<div id="Grid"></div> 
    <script type="text/babel"> 
        var data = ej.DataManager({url: "/Grid/DataSource", adaptor:"UrlAdaptor"}); 
        var settings = { width: 550, height: 300, enableVirtualization: true }; 
        <div id="Grid2"> 
                        <EJ.Grid id="Grid_1" dataSource={data} allowScrolling={true} allowSorting={true} scrollSettings={settings}> 

       public IEnumerable OrderData = new NorthwindDataContext().OrdersViews.ToList(); 
        public ActionResult DataSource(DataManager dataManager) 
            IEnumerable data = OrderData; 
            DataOperations operation = new DataOperations(); 
            if (dataManager.Sorted != null && dataManager.Sorted.Count > 0) //Sorting 
                data = operation.PerformSorting(data, dataManager.Sorted); 
            if (dataManager.Where != null && dataManager.Where.Count > 0) //Filtering 
                data = operation.PerformWhereFilter(data, dataManager.Where, dataManager.Where[0].Operator); 
            int count = data.Cast<OrdersView>().Count(); 
            if (dataManager.Skip != 0) 
                data = operation.PerformSkip(data, dataManager.Skip); 
            if (dataManager.Take != 0) 
                data = operation.PerformTake(data, dataManager.Take); 
            return Json(new { result = data, count = count }); 



For your convenience we have created the sample, kindly refer the below link. 

Manivannan Padmanaban. 

PB Pat Buchanan July 31, 2019 07:17 PM UTC

Hi, thank you for the quick response, just to be clear, we're using the ReactJS Grid in a React project.  This example looks like a C# example which uses React.  Can you give us an example that is for a ReactJS/Typescript project?

MP Manivannan Padmanaban Syncfusion Team August 1, 2019 03:02 PM UTC

Hi Pat, 

Thanks for the update. 

From your previous update, you requested to perform the paging at server side. So, we will provide you the reactJS sample with controller page integration. As like same, you can modify the code example based on your sample project. 

If you need further assistance, then kindly get back to us with the sample code example and detail explanation of your requirement. 

Manivannan Padmanaban.  

PB Pat Buchanan August 6, 2019 03:58 PM UTC

Hi, what we need is an example like above but with the Grid using ReactJS on the front-end and Node on the back-end.  Can we get something like that?

MP Manivannan Padmanaban Syncfusion Team August 10, 2019 04:38 AM UTC

Hi Pat, 
Sorry for the delayed response. 
In the below link we have discussed the node back end integration,  
Note: In the above link we have used the angularJS as front end, you can use reactJS as front end and the backend integration would be same. 
Kindly get back to us, if you are facing any difficulties while implementing your requirement. 
Manivannan Padmanaban. 

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