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jQWidgets jqxTreeGrid collapseRow() Method

  • Last Updated : 04 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, 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 collapseRow() method is used to collapse a specified row of the specified jqxTreeGrid.

Syntax:

$("#treeGrid").jqxTreeGrid('collapseRow', rowKey);

Parameters: This method accepts a parameter that is illustrated below.

  • rowKey: This is the specified row that will be collapsed.

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 collapseRow() method. In the below example, the third row will be collapsed.

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 collapseRow() Method
         </h3>
         <div id="jqxTreeGrid" style="margin: 25px;">
         </div>
         <input type="button" style="margin: 20px;" 
            id="button_for_collapseRow" 
            value="Collapse the third row"/>
         <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,
                    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_collapseRow").jqxButton({
                    width: 300,
                    height: 35
                });
                $('#button_for_collapseRow').click(
                    function () {
                        $("#jqxTreeGrid").
                            jqxTreeGrid('collapseRow', 3);
                    });
            });
         </script>
      </center>
   </body>
</html>

Output:

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


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