jQWidgets jqxDropDownList valueMember屬性用法及代碼示例

簡介：jQWidgets 是一個 JavaScript 框架，用於為 PC 和移動設備製作基於 Web 的應用程序。它是一個非常強大、優化、獨立於平台且得到廣泛支持的框架。 jqxDropDownList 小部件是一個 jQuery 下拉列表，其中包含下拉列表中顯示的可選項目列表。

值會員屬性用於設置或返回值會員的項目。此屬性指定要設置為列表項的 ‘value’ 的對象屬性的名稱。它接受 String 類型值，默認值為“”。

用法:

設置值會員屬性。

$('selector').jqxDropDownList({ valueMember: String });

返回值會員屬性。

var valueMember = $('selector').jqxDropDownList('valueMember');

鏈接文件：下載jQWidgets從鏈接。在 HTML 文件中，找到下載文件夾中的腳本文件。

<link rel=”stylesheet” href=”jqwidgets/styles/jqx.base.css” type=”text/css” />
<link rel=”stylesheet” href=”jqwidgets/styles/jqx.energyblue.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>
<script type=”text/javascript” src=”jqwidgets/jqxdropdownlist.js”></script>

例子：下麵的示例說明了 jqxDropDownList值會員jQWidgets 中的屬性。

HTML


<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <link rel="stylesheet" href= 
        "jqwidgets/styles/jqx.base.css" type="text/css" /> 
    <link rel="stylesheet" href= 
        "jqwidgets/styles/jqx.energyblue.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> 
    <script type="text/javascript" 
        src="jqwidgets/jqxdropdownlist.js"></script> 
</head> 
  
<body> 
    <center> 
        <h1 style="color: green;"> 
            GeeksforGeeks 
        </h1> 
  
        <h3> 
            jQWidgets jqxDropDownList valueMember Property 
        </h3> 
  
        <div id='jqxDDL'></div> 
    </center> 
    <script type="text/javascript"> 
        $(document).ready(function() { 
            var data = [{ 
                index: 0, 
                subject: "Computer Science" 
            }, { 
                index: 0, 
                subject: "C Programming" 
            }, { 
                index: 0, 
                subject: "C++ Programming" 
            }, { 
                index: 0, 
                subject: "Java Programming" 
            }, { 
                index: 0, 
                subject: "Python Programming" 
            }, { 
                index: 0, 
                subject: "HTML" 
            }, { 
                index: 0, 
                subject: "CSS" 
            }, { 
                index: 0, 
                subject: "JavaScript" 
            }, { 
                index: 0, 
                subject: "jQuery" 
            }, { 
                index: 0, 
                subject: "PHP" 
            }, { 
                index: 0, 
                subject: "Bootstrap" 
            }]; 
  
            $("#jqxDDL").jqxDropDownList({ 
                source: data, 
                theme: 'energyblue', 
                displayMember: 'subject', 
                valueMember: 'index' 
            }); 
  
            $("#jqxDDL").on('change', function (event) { 
                alert("label: " + event.args.item.label  
                + ", value: " + event.args.item.index); 
            }); 
        }); 
    </script> 
</body> 
  
</html

輸出：

參考： https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxdropdownlist/jquery-dropdownlist-api.htm

相關用法

注：本文由純淨天空篩選整理自ppatelkap大神的英文原創作品 jQWidgets jqxDropDownList valueMember Property。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。