极客教程jQWidgets jqxGrid expandgroup()方法
jQWidgets是一个JavaScript框架，用于为PC和移动设备制作基于Web的应用程序。它是一个非常强大的，优化的，与平台无关的，并且被广泛支持的框架。jqxGrid用来说明一个jQuery widget，以表格形式显示数据。此外，它完全支持与数据的连接，以及分页、分组、排序、过滤和编辑。
expandgroup()方法用于扩展显示的jqxGrid的一个指定组。它有一个名为group的参数，它的类型是字符串或数字。它不返回任何东西。
语法:
$('#Selector').jqxGrid('expandgroup', group);
链接的文件：从给出的链接中下载jQWidgets。在HTML文件中，找到下载文件夹中的脚本文件。
<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>
下面的例子说明了jQWidgets中的jqxGrid expandgroup()方法。
示例:
<!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 expandgroup() method</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"];
for (var j = 0; j<7; 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,
height: "240px",
width: "300px",
columns: [
{
text: "Subject Name",
datafield: "subjectnames",
width: "160px",
},
{
text: "Page No.",
datafield: "pagenumber",
width: "160px",
},
],
});
("#jqxBtn").jqxButton({
width: "180px",
height: "30px",
});
("#jqxg").jqxGrid("addgroup", "pagenumber");
("#jqxBtn").on("click", function () {
("#jqxg").jqxGrid("expandgroup", 1);
("#log").text("A Group expanded!");
});
});
</script>
</body>
</html>
输出:
