jQWidgets jqxListBox getSelectedIndex() Method
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 jqxListBox is used to illustrate a jQuery ListBox widget which comprises a list of electable elements.
The getSelectedIndex() method is used to return the selected item’s index from the stated list. In case, no item is selected, then -1 is returned. It has no parameter and it returns a number i.e. index.
Syntax:
$("#jqxListBox").jqxListBox('getSelectedIndex');Linked Files: Download jQWidgets from the 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/jqx-all.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.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>
Example: The below example illustrates the jqxListBox getSelectedIndex() method 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/jqx-all.js"></script> <script type="text/javascript" src="jqwidgets/jqxcore.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></head> <body> <center> <h1 style="color: green;"> GeeksforGeeks </h1> <h3> jQWidgets jqxListBox getSelectedIndex() Method </h3> <div id="jqxLB"></div> <br /> <input type="button" id="jqxBtn" style="padding: 5px 20px;" value="get the selected index" /> </center> <script type="text/javascript"> $(document).ready(function () { var data = ["Computer Science", "C Programming", "C++ Programming"]; $("#jqxLB").jqxListBox({ source: data, width: "200px", height: "80px", selectedIndex: 1, }); $("#jqxBtn").on("click", function () { var i = $("#jqxLB").jqxListBox("getSelectedIndex"); console.log("Selected Index is: " + i); }); }); </script></body> </html> |
Output:
getSelectedIndex method
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