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jQWidgets jqxTreeGrid updating() Method

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  • Last Updated : 27 Oct, 2021
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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 updating() method is used to return boolean values i.e., true if the jqxTreeGrid is in state of updating else it returns false.

Syntax:

$("#treeGrid").jqxTreeGrid('updating');

Parameters: This method does not accept any parameters.

Return Values: This method returns boolean values i.e., true if the jqxTreeGrid is in state of updating else it returns false.

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 updating() method.

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 updating() Method
        </h3>
        <div id="jqxTreeGrid" style="margin: 25px;">
        </div>
        <input type="button" style="margin: 20px;" 
               id="button_for_updating" 
               value="Is updating?" />
        <input type="button" style="margin: 20px;" 
               id="button_for_beginUpdate" 
               value="beginUpdate" />
        <input type="button" style="margin: 20px;" 
               id="button_for_endUpdate" 
               value="endUpdate" />
        <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,
                    editable: 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_updating").jqxButton({
                    width: 200,
                    height: 35
                });
                $("#button_for_beginUpdate").jqxButton({
                    width: 200,
                    height: 35
                });
                $("#button_for_endUpdate").jqxButton({
                    width: 200,
                    height: 35
                });
                $('#button_for_updating').click(
                    function () {
                        var Is_Updating = $("#jqxTreeGrid").
                            jqxTreeGrid('updating');
                        $("#log").html(JSON.stringify(
                            Is_Updating))
                    });
                $('#button_for_beginUpdate').click(
                    function () {
                        var beginUpdate = $("#jqxTreeGrid").
                            jqxTreeGrid('beginUpdate');
                    });
                $('#button_for_endUpdate').click(
                    function () {
                        var endUpdate = $("#jqxTreeGrid").
                            jqxTreeGrid('endUpdate');
                    });
            });
        </script>
    </center>
</body>
  
</html>


Output:

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


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