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jQWidgets jqxTreeGrid applyFilters() Method

  • Last Updated : 28 Oct, 2021

jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful, optimized, platform-independent, and widely supported framework. The jqxTreeGrid is used for representing data in a tree-like structure. This widget is useful for displaying multi-column of hierarchical data, data paging, sorting and filtering, data editing, column resizing, fixed columns, conditional formatting, aggregates, and rows selection. These widgets also read and display the data from any type of data sources such as XML, JSON, Array, CSV, or TSV.

The applyFilters() method is used to apply the added or removed filters to the specified jqxTreeGrid.

Syntax:

$("Selector").jqxTreeGrid('applyFilters');

Parameters: This method does not accept any parameters.

Return Values: This method does not return any values.

Linked Files: Download jQWidgets from the given link. In the HTML file, locate the script files in the downloaded folder.

<link rel=”stylesheet” href=”jqwidgets/styles/jqx.base.css” type=”text/css” />
<script type=”text/javascript” src=”scripts/jquery.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdata.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxbuttons.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxscrollbar.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxlistbox.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdropdownlist.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdatatable.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxtreegrid.js”></script>

Example: The below example illustrates the jQWidgets jqxTreeGrid applyFilters() method. In the below example, the added filter for the ‘geeksforgeeks’ from ‘Company’ column has been applied.

HTML




<!DOCTYPE html>
<html lang="en">
  
<head>
    <link rel="stylesheet" 
          href="jqwidgets/styles/jqx.base.css" 
          type="text/css"/>
    <script type="text/javascript" 
            src="scripts/jquery.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdata.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxbuttons.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxscrollbar.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxlistbox.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdropdownlist.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdatatable.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxtreegrid.js">
    </script>
</head>
  
<body>
    <center>
        <h1 style="color: green;">
            GeeksforGeeks
        </h1>
        <h3>
            jQWidgets jqxTreeGrid applyFilters() Method
        </h3>
        <div id="jqxTreeGrid" style="margin: 25px;">
        </div>
        <input type="button" style="margin: 20px;" 
               id="button_for_applyFilters" 
               value="Apply the filter" />
        <div id="log"></div>
        <script type="text/javascript">
            $(document).ready(function () {
                var A = [{
                    "ID": 1,
                    "Employee_Name": "Amit",
                    "Company": "GeeksforGeeks",
                    "Designation": "Content Writer",
                    "expanded": true,
                    A1: [{
                        "ID": 2,
                        "Employee_Name": "Sumit",
                        "Company": "Amazon",
                        "Designation": "Software Engineer",
                    }, {
                        "ID": 3,
                        "Employee_Name": "Vivek",
                        "Company": "Apple",
                        "Designation": "Product Manager",
                        "expanded": true,
                        A1: [{
                            "ID": 4,
                            "Employee_Name": "Soni",
                            "Company": "Flipkart",
                            "Designation": "HR",
                        }]
                    }]
                }];
  
                var Data_Source = {
                    dataFields: [{
                        name: 'ID'
                    }, {
                        name: 'Employee_Name'
                    }, {
                        name: 'Company'
                    }, {
                        name: 'Designation'
                    }, {
                        name: 'A1',
                        type: 'array'
                    }, {
                        name: 'expanded'
                    }],
                    hierarchy: {
                        root: 'A1'
                    },
                    id: 'ID',
                    localData: A
                };
  
                var Data = new
                    $.jqx.dataAdapter(Data_Source);
  
                $("#jqxTreeGrid").jqxTreeGrid({
                    source: Data,
                    filterable: true,
                    ready: function () {
                        $("#jqxTreeGrid").jqxTreeGrid(
                            'expandRow', '1');
                        $("#jqxTreeGrid").jqxTreeGrid(
                            'expandRow', '3');
                    },
                    columns: [{
                        text: 'Employee_Name',
                        align: 'center',
                        dataField: 'Employee_Name',
                        width: 140
                    }, {
                        text: 'Company',
                        align: 'center',
                        dataField: 'Company',
                        width: 150
                    }, {
                        text: 'Designation',
                        align: 'center',
                        dataField: 'Designation',
                        width: 150
                    }]
  
                });
                $("#button_for_applyFilters").jqxButton({
                    width: 300,
                    height: 35
                });
                $('#button_for_applyFilters').click(
                    function () {
                        var Type = 'stringfilter';
                        var Group = new $.jqx.filter();
                        var Operator = 1;
                        var Value = "GeeksforGeeks";
                        var Condition = 'equal';
                        var filter = Group.createfilter(
                          Type, Value, Condition);
                        Group.addfilter(Operator, filter);
                        $("#jqxTreeGrid").jqxTreeGrid(
                          'addFilter', 'Company', Group);
                        $("#jqxTreeGrid").jqxTreeGrid(
                          'applyFilters');
                    });
            });
        </script>
    </center>
</body>
  
</html>

Output:

Reference: https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxtreegrid/jquery-treegrid-api.htm?search=


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