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Improve filter dialog performance when handling large data

22 Oct 2021 / 2 minutes to read

In the filter dialog, user can set the limit to display field values while loading the large data. Based on this limit, the initial loading will complete quickly without any performance constraint. And user can use search option to refining the field values from exceeded limit. You can refine the data further by using search option and a message with the remaining data count will be displayed in member editor. The data limit can be set in the property maxNodeLimitInEditor.

By default, the property holds the value 1000.

The property is available in both PivotView and PivotFieldList components.

In the below example, the data in the member editor limits to 100. So, the member editor of the field ProductID shows only its first 100 members from its 1000 members.

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index.ts
index.html
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import { PivotView, VirtualScroll, GroupingBar, IDataSet } from '@syncfusion/ej2-pivotview';

let data: Function = (count: number) => {
let result: Object[] = [];
let dt: number = 0;
for (let i: number = 1; i < (count + 1); i++) {
    dt++;
    let round: string;
    let toString: string = i.toString();
    if (toString.length === 1) {
        round = '0000' + (i);
    }
    else if (toString.length === 2) {
        round = '000' + i;
    }
    else if (toString.length === 3) {
        round = '00' + i;
    } else if (toString.length === 4) {
        round = '0' + i;
    } else {
        round = toString;
    }
    result.push({
        ProductID: 'PRO-' + round,
        Year: "FY " + (dt + 2013),
        Sold: Math.round(Math.random() * 80) + 10,
    });
    if (dt / 4 == 1) {
        dt = 0;
    }
}
return result;
};

PivotView.Inject(VirtualScroll, GroupingBar);
let pivotGridObj: PivotView = new PivotView({
dataSource: {
    data: data(1000) as IDataSet[],
    enableSorting: false,
    rows: [{ name: 'ProductID' }],
    columns: [{ name: 'Year' }],
    values: [{ name: 'Sold', caption: 'Unit Sold' }]
},
width: 710,
height: 260,
enableVirtualization: true,
showGroupingBar: true,
maxNodeLimitInEditor: 100
});

pivotGridObj.appendTo('#PivotGrid');
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<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Pivot Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Pivot Grid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-calendars/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-pivotview/styles/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div>
            <div id='PivotGrid'></div>
        </div>
    </div>
</body>

</html>