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 groupschanged Event is activated whenever a group of a displayed jqxGrid is added, inserted, or removed.
Syntax:
$("Selector").on("groupschanged", function (event) { // Arguments of the event var args = event.args; // Type of the change var type = args.type; // Index of the group var groupIndex = args.index. // Array of the groups var groups = args.groups; });
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/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/jqx-all.js”></script>
Example: The below example illustrates the jqxGrid groupschanged Event in jQWidgets.
<!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 >
</ head >
< body >
< center >
< h1 style = "color: green" >
GeeksforGeeks
</ h1 >
< h3 >jQWidgets jqxGrid groupschanged Event
</ h3 >
< br />
< div id = "jqxg" ></ div >
< br />
< 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"];
for (var j = 0; j < 50 ; j++) {
var r = {};
r["subjectnames"] =
subjectNames[(Math.floor(
Math.random() * subjectNames.length))
];
r["pagenumber"] =
pageNumber[(Math.floor(
Math.random() * pageNumber.length))
];
d[j] = r;
}
var src = {
localdata: d,
datatype: "array",
};
var data_Adapter = new $.jqx.dataAdapter(src);
$("#jqxg").jqxGrid({
source: data_Adapter,
groupable: true,
theme: 'energyblue',
height: "260px",
width: "240px",
columns: [
{
text: "Subject Name",
datafield: "subjectnames",
width: "120px",
},
{
text: "Page No.",
datafield: "pagenumber",
width: "120px",
},
],
});
$("#jqxg").on("groupschanged", function (event) {
$('#log').html("Group(s): " + event.args.groups);
});
});
</script>
</ body >
</ html >
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Output: