jQWidgets jqxTreeGrid focus() 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 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 focus() method is used to focus the specified jqxTreeGrid.

Syntax:

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

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 focus() 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 focus() Method 
         </h3> 
         <div id="jqxTreeGrid" style="margin: 25px;"> 
         </div> 
         <input type="button" style="margin: 20px;" 
            id="button_for_focus" 
            value="Focus the above jqxTreeGrid"/> 
         <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_focus").jqxButton({ 
                    width: 200, 
                    height: 35 
                }); 
                $('#button_for_focus').click( 
                    function () { 
                        $("#jqxTreeGrid"). 
                            jqxTreeGrid('focus'); 
                    }); 
            }); 
         </script> 
      </center> 
   </body> 
</html>