极客教程jQWidgets jqxTreeGrid updateBoundData()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、并被广泛支持的框架。jqxTreeGrid用于以树状结构表示数据。这个部件对于显示多列的分层数据、数据分页、排序和过滤、数据编辑、列大小调整、固定列、条件格式化、聚合和行选择都很有用。这些部件还可以从任何类型的数据源中读取和显示数据，如XML、JSON、Array、CSV或TSV。
updateBoundData()方法用于执行一个数据绑定操作，同时用输入的新数据更新指定的jqxTreeGrid。
语法:
$("#treeGrid").jqxTreeGrid('updateBoundData');
参数：该方法不接受任何参数。
返回值：该方法不返回任何值。
链接的文件：从给出的链接中下载https://www.jqwidgets.com/download/。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.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>
例子：下面的例子说明了jQWidgets jqxTreeGrid updateBoundData()方法。
<!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 updateBoundData() Method
</h3>
<div id="jqxTreeGrid" style="margin: 25px;"></div>
<input type="button" style="margin: 20px;"
id="button_for_updateBoundData"
value="Update the bound data" />
<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_updateBoundData").jqxButton({
width: 200,
height: 35,
});
("#button_for_updateBoundData").click(function () {
("#jqxTreeGrid").jqxTreeGrid("updateBoundData");
});
});
</script>
</center>
</body>
</html>
输出:
