jQWidgets jqxGrid virtualmode Property

Last Updated : 29 Mar, 2023

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 jqxGrid is used to illustrate a jQuery widget that shows data in tabular form. Moreover, it renders full support for connecting with data, as well as paging, grouping, sorting, filtering, and editing.

The virtualmode property is used to activate or deactivate the virtual mode of the displayed jqxGrid. It is of boolean type and its default value is “false”.

Syntax:

Set the virtualmode property:

$('Selector').jqxGrid({ virtualmode: true });

Return the virtualmode property:

var virtualmode = $('Selector').jqxGrid('virtualmode');

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-1.11.1.min.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqx-all.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/jqxmenu.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxgrid.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxgrid.selection.js”></script>

Example 1: The below example illustrates the jqxGrid virtualmode 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-1.11.1.min.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/jqxmenu.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxgrid.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxgrid.selection.js"> 
    </script> 
      <script type="text/javascript" 
            src="jqwidgets/jqxgrid.columnsresize.js"> 
    </script> 
</head> 
  
<body> 
    <center> 
        <h1 style="color: green"> 
            GeeksforGeeks 
        </h1> 
          
        <h3>jQWidgets jqxGrid virtualmode property 
        </h3> 
        
        <br /> 
          
        <div id="jqxg"></div> 
          
        <div> 
            <input type="button" id="jqxBtn" 
                style="margin-top: 25px" value="Click here" /> 
        </div> 
          
        <div id="log"></div> 
          
    </center> 
  
    <script type="text/javascript"> 
        $(document).ready(function () { 
            var d = new Array(); 
            var subjectNames = 
                ["C++", "Scala", "Java", "C", "R", "JavaScript"]; 
  
            var pageNumber = 
                ["7", "8", "12", "11", "10", "19"]; 
            var gd = function (beginindex, endindex) { 
                var d = {}; 
  
                for (var j = beginindex; j < endindex; j++) { 
                    var r = {}; 
                    r["subjectnames"] = 
                        subjectNames[(Math.floor( 
                            Math.random() * subjectNames.length)) 
                        ]; 
  
                    r["pagenumber"] = 
                        pageNumber[(Math.floor( 
                            Math.random() * pageNumber.length)) 
                        ]; 
                    d[j] = r; 
  
                } 
                return d; 
            } 
  
            var src = { 
                localdata: {}, 
                datatype: "array", 
                totalrecords: 50, 
            }; 
            var rgr = function (p) { 
                var d = gd(p.startindex, p.endindex); 
                return d; 
            } 
            var data_Adapter = new $.jqx.dataAdapter(src); 
            $("#jqxg").jqxGrid({ 
                source: data_Adapter, 
                theme: 'energyblue', 
                sortable: true, 
                virtualmode: true, 
                pageable: true, 
                rendergridrows: rgr, 
                height: "260px", 
                width: "240px", 
                columns: [ 
                    { 
                        text: "Subject Name", 
                        datafield: "subjectnames", 
                        width: "120px", 
                    }, 
                    { 
                        text: "Page No.", 
                        datafield: "pagenumber", 
                        width: "120px", 
                    }, 
                ], 
            }); 
  
            $("#jqxBtn").jqxButton({ 
                width: "180px", 
                height: "30px", 
            }); 
            $("#jqxBtn").on("click", function () { 
                var vm = $('#jqxg').jqxGrid('virtualmode'); 
                $('#log').text(vm); 
            }); 
        }); 
    </script> 
</body> 
  
</html>

Output:

Example 2: The following code sets the virtualmode property to “false”.

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-1.11.1.min.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/jqxmenu.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxgrid.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxgrid.selection.js"> 
    </script> 
      <script type="text/javascript" 
            src="jqwidgets/jqxgrid.columnsresize.js"> 
    </script> 
</head> 
  
<body> 
    <center> 
        <h1 style="color: green"> 
            GeeksforGeeks 
        </h1> 
          
        <h3>jQWidgets jqxGrid virtualmode  
            property 
        </h3> 
        
        <br /> 
          
        <div id="jqxg"></div> 
          
        <div> 
            <input type="button" id="jqxBtn" 
                style="margin-top: 25px" value="Click here" /> 
        </div> 
          
        <div id="log"></div> 
          
    </center> 
  
    <script type="text/javascript"> 
        $(document).ready(function () { 
            var d = new Array(); 
            var subjectNames = 
                ["C++", "Scala", "Java", "C", "R", "JavaScript"]; 
  
            var pageNumber = 
                ["7", "8", "12", "11", "10", "19"]; 
            var gd = function (beginindex, endindex) { 
                var d = {}; 
  
                for (var j = beginindex; j < endindex; j++) { 
                    var r = {}; 
                    r["subjectnames"] = 
                        subjectNames[(Math.floor( 
                            Math.random() * subjectNames.length)) 
                        ]; 
  
                    r["pagenumber"] = 
                        pageNumber[(Math.floor( 
                            Math.random() * pageNumber.length)) 
                        ]; 
                    d[j] = r; 
  
                } 
                return d; 
            } 
  
            var src = { 
                localdata: {}, 
                datatype: "array", 
                totalrecords: 50, 
            }; 
            var rgr = function (p) { 
                var d = gd(p.startindex, p.endindex); 
                return d; 
            } 
            var data_Adapter = new $.jqx.dataAdapter(src); 
            $("#jqxg").jqxGrid({ 
                source: data_Adapter, 
                theme: 'energyblue', 
                sortable: true, 
                virtualmode: false, 
                pageable: true, 
                rendergridrows: rgr, 
                height: "260px", 
                width: "240px", 
                columns: [ 
                    { 
                        text: "Subject Name", 
                        datafield: "subjectnames", 
                        width: "120px", 
                    }, 
                    { 
                        text: "Page No.", 
                        datafield: "pagenumber", 
                        width: "120px", 
                    }, 
                ], 
            }); 
  
            $("#jqxBtn").jqxButton({ 
                width: "180px", 
                height: "30px", 
            }); 
            $("#jqxBtn").on("click", function () { 
                var vm = $('#jqxg').jqxGrid('virtualmode'); 
                if (vm === true) { 
                    $('#log').text("Virtual mode!"); 
                } 
                else { 
                    $('#log').text("False!"); 
                } 
            }); 
        }); 
    </script> 
</body> 
  
</html>