jQWidgets jqxTreeGrid rendering Property

Last Updated : 22 Sep, 2022

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 source such as XML, JSON, Array, CSV, or TSV.

The rendering property is a callback function that is invoked until the row of the displayed jqxTreeGrid is rendered. It is of Function type and its default value is null.

Syntax:

Set the rendering property:

$('Selector').jqxTreeGrid({ rendering: null });

Return the rendering property:

var rendering = $('Selector').jqxTreeGrid('rendering');

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 1: The below example illustrates the jqxTreeGrid rendering property in jQWidgets.

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 rendering Property 
        </h3> 
        <div id="jqxTreeGrid" style="margin: 25px;"> 
        </div> 
        <input type="button" style="margin: 29px;" 
               id="jqxbtn" value="Click here" /> 
        <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, 
                    rendering: function () { 
                        $('#jqxbtn').click(function () { 
                            $("#log").text("Function invoked!") 
                        }); 
                    }, 
                    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 
                    }] 
                }); 
                $("#jqxbtn").jqxButton({ 
                    width: 270 
                }) 
            }); 
        </script> 
    </center> 
</body> 
</html>

Output:

Example 2: The following is another example of the jqxTreeGrid rendering property in jQWidgets.

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 rendering Property 
        </h3> 
        <div id="jqxTreeGrid" style="margin: 25px;"> 
        </div> 
        <input type="button" style="margin: 29px;" 
               id="jqxbtn" value="Click here" /> 
        <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, 
                    rendering: null, 
                    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 
                    }] 
                }); 
                $("#jqxbtn").jqxButton({ 
                    width: 270 
                }) 
                $("#jqxbtn").on("click", function () { 
                    var r =  
                        $('#jqxTreeGrid').jqxTreeGrid('rendering'); 
                    if (r === null) { 
                        $('#log').text("Null!"); 
                    } 
                    else { 
                        $('#log').text("Not null!"); 
                    } 
                }); 
            }); 
        </script> 
    </center> 
</body> 
</html>