jQWidgets jqxListBox取消选择事件

jQWidgets jqxListBox取消选择事件

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。jqxListBox被用来说明一个jQuery ListBox widget,它包括一个可选元素的列表。

每当用户从所述ListBox中取消选择一个项目时,unselect事件就被激活。

语法:

$('#jqxListBox').on('unselect', function (event) {});

该项目对象拥有以下给定的字段。

  • label
  • value
  • disabled
  • checked
  • hasThreeStates
  • html
  • index
  • group

链接的文件:从链接中下载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/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>

例子:下面的例子说明了在jQWidgets中jqxListBox unselect事件。

<!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 unselect event
            </h3>
  
            <div id="jqxLB"></div>
            <br />
            <div id="log"></div>
        </center>
  
        <script type="text/javascript">
            (document).ready(function () {
                var data = ["CS", "CSS", "C++", "Java", "Scala"];
  
                ("#jqxLB").jqxListBox({
                    source: data,
                    width: "210px",
                    height: "80px",
                    selectedIndex: 1,
                });
  
                ("#jqxLB").on("unselect", function (event) {
                    var args = event.args;
  
                    if (args) {
                        if (!args.item) return;
                        ("#log").html(args.item.value
                          + " is unselected");
                    }
                });
            });
        </script>
    </body>
</html>

输出:

jQWidgets jqxListBox取消选择事件

unselect event

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