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Filter using both text and value field in JavaScript (ES5) AutoComplete control

06 Jun 2023 / 2 minutes to read

The AutoComplete data can be filtered based on both text and value fields using predicate of dataManager through filtering event. The filtered data can be again updated through updateData method.

In the following example, filtering is done based on text and value fields.

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let searchData = [
    { Name: 'Australia', Code: 'AU' },
    { Name: 'Bermuda', Code: 'BM' },
    { Name: 'Canada', Code: 'CA' },
    { Name: 'Cameroon', Code: 'CM' },
    { Name: 'Denmark', Code: 'DK' },
    { Name: 'France', Code: 'FR' },
    { Name: 'Finland', Code: 'FI' },
    { Name: 'Germany', Code: 'DE' },
    { Name: 'Greenland', Code: 'GL' },
    { Name: 'Hong Kong', Code: 'HK' },
    { Name: 'India', Code: 'IN' },
    { Name: 'Italy', Code: 'IT' },
    { Name: 'Japan', Code: 'JP' },
    { Name: 'Mexico', Code: 'MX' },
    { Name: 'Norway', Code: 'NO' },
    { Name: 'Poland', Code: 'PL' },
    { Name: 'Switzerland', Code: 'CH' },
    { Name: 'United Kingdom', Code: 'GB' },
    { Name: 'United States', Code: 'US' }
//initiates the component
let atcObject = new ej.dropdowns.AutoComplete({
    // bind the country data to dataSource property
    dataSource: searchData,
    // maps the appropriate column to fields property
    fields: { value: "Code", text:"Name" },
    //set the placeholder to AutoComplete input
      //set item template
    itemTemplate:"<span><span class='name'>${Name}</span>-<span class ='code'>${Code}</span></span>",
    filtering: function(e)
        var predicate = new'Name', 'contains', e.text); 
        predicate = predicate.or('Code', 'contains', e.text); 
        var query = new; 
        //frame the query based on search string with filter type.
        query = (e.text != "") ? query.where(predicate) : query;
        //pass the filter data source, filter query to updateData method.
        e.updateData(this.dataSource, query);
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<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 AutoComplete</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="styles.css" rel="stylesheet">
    <link href="//" rel="stylesheet">
    <link href="//" rel="stylesheet">
    <link href="//" rel="stylesheet">
<script src="" type="text/javascript"></script>

    <div id="container" style="margin:0 auto; width:250px;">
        <input type="text" tabindex="1" id="atcelement">

var ele = document.getElementById('container');
if(ele) { = "visible";
<script src="index.js" type="text/javascript"></script>
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#container {
  visibility: hidden;

#loader {
color: #008cff;
height: 40px;
width: 30%;
position: absolute;
top: 45%;
left: 45%;