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 sources such as XML, JSON, Array, CSV, or TSV.
The scrollOffset() method is used to scroll to a specified position of the specified jqxTreeGrid.
Syntax:
$("#treeGrid").jqxTreeGrid('scrollOffset', top, left);Parameters: This method accepts two parameters that are illustrated below:
- top: This is the specified vertical scrollbar value up to which the scrolling will be done.
- left: This is the specified horizontal scrollbar value up to which the scrolling will be done
Return Values: This method returns the objects for the top and left parameters used i.e., object.left and object.top.
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: The below example illustrates the jQWidgets jqxTreeGrid scrollOffset() method. In the below example, horizontal scrolling is performed to its value of 30.
<!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 scrollOffset() Method
</h3>
<div id="jqxTreeGrid" style="margin: 25px;"></div>
<input type="button" style="margin: 20px;" id="button_for_scrollOffset"
value="Invoke the scrollOffset() Method" />
<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({
width: 400,
source: Data,
sortable: true,
ready: function () {
$("#jqxTreeGrid").jqxTreeGrid("expandRow", "1");
},
ready: function () {
$("#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_scrollOffset").jqxButton({
width: 350,
height: 35,
});
$("#button_for_scrollOffset").click(function () {
var Scroll_Value = $("#jqxTreeGrid")
.jqxTreeGrid("scrollOffset", 25, 30);
});
});
</script>
</center>
</body>
</html>
|
Output: