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jQWidgets jqxKnob allowValueChangeOnClick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、優化、獨立於平台且得到廣泛支持的框架。這 jqx旋鈕用於表示具有圓形形狀並在指定值範圍內顯示可拖動指示器的 jQuery 插件。此 API 還可以在表或矩陣中使用,用於顯示指定數據區域中一係列值中字段的相對值。

單擊時允許值更改 屬性用於設置或獲取指定jqxKnob的值是否可以在單擊時更改。

用法:

  • 用於設置單擊時允許值更改屬性:

    $('#jqxKnob').jqxKnob({allowValueChangeOnClick: true });
  • 為了得到單擊時允許值更改屬性:

    var allowValueChangeOnClick = 
        $('#jqxKnob').jqxKnob('allowValueChangeOnClick');

鏈接文件:下載jQWidgets從給定的鏈接。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.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/jqxdraw.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxknob.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxnumberinput.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqx-all.js”></script>

例子:下麵的例子說明了 jqxKnob單擊時允許值更改 屬性在 jQWidgets 中。

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.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/jqxdraw.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxknob.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxnumberinput.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqx-all.js"> 
    </script> 
</head> 
  
<body> 
    <center> 
        <h1 style="color:green;"> 
            GeeksforGeeks 
        </h1> 
        <h3> 
            jQWidgets jqxKnob allowValueChangeOnClick Property 
        </h3> 
        <div id='jqx_Knob'> 
            <center> 
                GeeksforGeeks 
            </center> 
        </div> 
        <input type="button" style="margin: 65px;" 
            id="button_for_allowValueChangeOnClick"
            value="Value of the allowValueChangeOnClick property"/> 
        <div id="log"></div> 
        <script type="text/javascript"> 
            $(document).ready(function () { 
                $('#jqx_Knob').jqxKnob({ 
                    value: 5, 
                    min: 0, 
                    max: 50, 
                    startAngle: 0, 
                    endAngle: 360, 
                    snapToStep: true, 
                    allowValueChangeOnClick: true, 
                    marks: { 
                        colorRemaining: { color: 'red' }, 
                        colorProgress: { color: 'green' }, 
                        offset: '70%', 
                        thickness: 5, 
                        size: '4%' 
                    }, 
                    labels: { 
                        offset: '85%', 
                        step: 5 
                    }, 
                    progressBar: { 
                        style: { fill: 'yellow',  
                                 stroke: 'black' }, 
                        size: '8%', 
                        offset: '61%', 
                        background: { fill: 'black' } 
                    }, 
                    pointer: { type: 'arrow',  
                              style: { fill: 'green' },  
                              size: '68%',  
                              offset: '29%',  
                              thickness: 15 } 
                }); 
                
                $("#button_for_allowValueChangeOnClick").jqxButton({ 
                    width: 300, 
                    theme: 'energyblue' 
                }); 
                
                $('#button_for_allowValueChangeOnClick') 
                .jqxButton().click(function () { 
                    var value_of_allowValueChangeOnClick  
                        = $('#jqx_Knob').jqxKnob( 
                          'allowValueChangeOnClick'); 
  
                    $("#log").html( 
                        value_of_allowValueChangeOnClick); 
                    }) 
            }); 
        </script> 
    </center> 
</body> 
  
</html>

輸出:

參考:https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxknob/jquery-knob-api.htm



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