jQWidgets jqxComboBox ensureVisible()方法

jQWidgets jqxComboBox ensureVisible()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。jqxComboBox用来表示一个jQuery combobox widget,它包含一个具有自动完成功能的输入字段和一个下拉显示的可选择项目的列表。

ensureVisible()方法是用来确保一个项目是可见的。为了使项目可见,如果有必要的话,会使用滚动。它接受一个Number类型的单参数索引,并且不返回任何值。

语法:

$('selector').jqxComboBox('ensureVisible', index );

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/jqxcolorpicker.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/jqxcombobox.js”></script>

例子:下面的例子说明了jqxComboBox ensureVisible()方法在jQWidgets中。

<!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/jqxcolorpicker.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/jqxcombobox.js"></script>
</head>
  
<body>
    <center>
        <h1 style="color: green;">
            GeeksforGeeks
        </h1>
  
        <h3>
            jQWidgets jqxComboBox ensureVisible() Method
        </h3>
  
        <div id='jqxCB'></div>
        <br>
        <input type="button" id='jqxBtn' 
            style="padding: 5px 20px;"
            value="Enable Item" />
    </center>
  
    <script type="text/javascript">
        (document).ready(function () {
            var data = [
                "Computer Science",
                "C Programming",
                "C++ Programming",
                "Java Programming",
                "Python Programming",
                "HTML",
                "CSS",
                "JavaScript",
                "jQuery",
                "PHP",
                "Bootstrap"
            ];
  
            ("#jqxCB").jqxComboBox({
                source: data,
                width: '250px',
                animationType: 'slide'
            });
  
            ('#jqxBtn').on('click', function () {
                ("#jqxCB").jqxComboBox('open');
  
                $("#jqxCB").jqxComboBox(
                    'ensureVisible', 9
                );
            });
        });
    </script>
</body>
  
</html>

输出:

jQWidgets jqxComboBox ensureVisible()方法

Python教程

Java教程

Web教程

数据库教程

图形图像教程

大数据教程

开发工具教程

计算机教程