jQWidgets jqxComboBox valueMember屬性用法及代碼示例

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。它是一個非常強大且優化的框架，獨立於平台，並且得到廣泛支持。這jqx組合框用於表示 jQuery ComboBox 小部件，該小部件包含具有自動完成函數的輸入字段和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指定的 jqxComboBox。此外，此屬性定義了對象屬性的名稱，以便將其設置為組合框指定部分的“值”，其中名稱限製在“source”屬性指定的集合中。它是字符串類型，默認值為“”。

用法:

設置值會員屬性。

$("selector").jqxComboBox({valueMember: 'last_Name'});

為了得到值會員屬性。

var valueMember = $('selector').jqxComboBox('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” />
<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/jqxcombobox.js”></script>

示例 1：下麵的示例說明了 jQWidgets jqxComboBox值會員屬性。

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/jqxlistbox.js"> 
    </script> 
    <script type="text/javascript"
            src="jqwidgets/jqxcombobox.js"> 
    </script> 
</head> 
  
<body> 
    <center> 
        <h1 style="color:green;"> 
            GeeksforGeeks 
        </h1> 
  
        <h3> 
              jQWidget jqxComboBox valueMember property  
          </h3> 
  
        <div id='jqxCB'></div> 
        <br> 
        <div id="divID"></div> 
    </center> 
  
    <script type="text/javascript"> 
        $(document).ready(function () { 
            var data = [ 
                { 
                    name: "HTML", 
                    index: 0, 
                }, 
                { 
                    name: "CSS", 
                    index: 1, 
                }, 
                { 
                    name: "JavaScript", 
                    index: 2, 
                }, 
                { 
                    name: "jQuery", 
                    index: 3, 
                }, 
                { 
                    name: "Angularjs", 
                    index: 4, 
                }, 
                { 
                    name: "Bootstrap", 
                    index: 5, 
                } 
            ]; 
  
            $("#jqxCB").jqxComboBox({ 
                source: data, 
                width: '250px', 
                animationType: 'slide', 
                displayMember: "name", 
                valueMember: "index", 
            }); 
  
            $('#jqxCB').on('change', function (event) { 
                $("#divID").html("Value: " + event.args.item.value); 
            }); 
        }); 
    </script> 
</body> 
</html>

輸出：

示例 2：下麵是jqxComboBox的另一個例子值會員jQWidgets 中的屬性。

HTML


<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <link rel="stylesheet" href= 
"jqwidgets/styles/jqx.base.css" 
          type="text/css" /> 
    <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/jqxlistbox.js"> 
    </script> 
    <script type="text/javascript"
            src="jqwidgets/jqxcombobox.js"> 
    </script> 
</head> 
  
<body> 
    <center> 
        <h1 style="color:green;"> 
            GeeksforGeeks 
        </h1> 
  
        <h3> 
              jQWidget jqxComboBox valueMember property 
          </h3> 
  
        <div id='jqxCB'></div> 
        <br> 
        <input type="button" 
               id="btn" 
               value="Click Here" 
               style="padding: 5px 14px;  
                      margin-top: 15px;"> 
        <div id="log"></div> 
    </center> 
  
    <script type="text/javascript"> 
        $(document).ready(function () { 
            var data = [ 
                { 
                    name: "HTML", 
                    index: 0, 
                }, 
                { 
                    name: "CSS", 
                    index: 1, 
                }, 
                { 
                    name: "JavaScript", 
                    index: 2, 
                }, 
                { 
                    name: "jQuery", 
                    index: 3, 
                }, 
                { 
                    name: "Angularjs", 
                    index: 4, 
                }, 
                { 
                    name: "Bootstrap", 
                    index: 5, 
                } 
            ]; 
  
            $("#jqxCB").jqxComboBox({ 
                source: data, 
                width: '250px', 
                animationType: 'slide', 
                displayMember: "name", 
                valueMember: null, 
            }); 
  
            $('#btn').click(function () { 
                var vm = $('#jqxCB').jqxComboBox('valueMember'); 
                if (vm === null) { 
                    $('#log').text("Null!"); 
                } 
                else { 
                    $('#log').text("Not null!"); 
                } 
            }); 
        }); 
    </script> 
</body> 
  
</html>

輸出：

參考： https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxcombobox/jquery-combobox-api.htm?search=

相關用法

注：本文由純淨天空篩選整理自nidhi1352singh大神的英文原創作品 jQWidgets jqxComboBox 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。