jQWidgets jqxListMenu filterCallback属性用法及代码示例

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、优化、独立于平台且得到广泛支持的框架。 jqxListMenu 是一个 jQuery 小部件，用于显示有序列表和无序列表的集合。我们可以使用有序列表和无序列表创建嵌套列表。

过滤器回调属性用于使用过滤器输入设置或返回过滤后的元素。它接受函数类型值，其默认值为函数(文本，searchValue){返回文本.toString().toLowerCase().indexOf(searchValue.toLowerCase()) >= 0;};

用法:

设置filterCallback属性。

$('selector').jqxListMenu({ filterCallback: Function });

返回filterCallback属性。

var filterCallback = 
    $('selector').jqxListMenu('filterCallback');

链接文件：从链接 https://www.jqwidgets.com/download/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/jqx-all.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdata.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxlistmenu.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxpanel.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxscrollbar.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxbuttons.js”></script>

下面的示例说明了 jQWidgets 中的 jqxListMenu filterCallback 属性。

例子：

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/jqxcore.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqx-all.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxdata.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxlistmenu.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxpanel.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxscrollbar.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxbuttons.js"> 
    </script> 
    
    <style> 
        h1, 
        h3 { 
            text-align: center; 
        } 
          
        #GFG { 
            width: 100%; 
            margin: 0 auto; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color: green;"> 
        GeeksforGeeks 
    </h1> 
  
    <h3> 
        jQWidgets jqxListMenu filterCallback Property 
    </h3> 
  
  
    <div id="GFG" style="width: 300px;"> 
        <ul id="list" data-role="listmenu"> 
            <li>Web Technology 
                <ul data-role="listmenu"> 
                    <li>Frontend Development 
                        <ul data-role="listmenu"> 
                            <li>HTML</li> 
                            <li>CSS</li> 
                            <li>JavaScript</li> 
                            <li>jQuery</li> 
                        </ul> 
                    </li> 
                    <li>Backend Development 
                        <ul data-role="listmenu"> 
                            <li>PHP</li> 
                            <li>Node.js</li> 
                            <li>Python</li> 
                            <li>Java</li> 
                        </ul> 
                    </li> 
                </ul> 
            </li> 
            <li>GeeksforGeeks Programming 
                <ul data-role="listmenu"> 
                    <li>C++</li> 
                    <li>Java</li> 
                    <li>Python</li> 
                </ul> 
            </li> 
        </ul> 
    </div> 
  
    <script type="text/javascript"> 
        $(document).ready(function () { 
            $('#list').jqxListMenu({ 
                width: 300, 
                height: 250, 
                showHeader: true, 
                showBackButton: true, 
                showFilter: true, 
                filterCallback: function (text, searchValue) { 
                    return text.toString().toLowerCase() 
                    .indexOf(searchValue.toLowerCase()) >= 0; 
                } 
            }); 
        }); 
    </script> 
</body> 
  
</html>

输出：

参考： https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxlistmenu/jquery-listmenu-api.htm

相关用法

注：本文由纯净天空筛选整理自ppatelkap大神的英文原创作品 jQWidgets jqxListMenu filterCallback Property。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。