jQWidgets jqxChart enableCrosshairs属性

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。它是一个非常强大和优化的框架，与平台无关，并得到广泛支持。jqxChart是一个轻量级和强大的图表部件，100%用javascript编写。它提供了许多先进的功能，并支持三种不同的渲染技术 – SVG, HTML5 Canvas & VML。

enableCrosshairs属性用于设置或返回enableCrosshairs属性，即该属性用于启用或禁用十字线的线条。它接受布尔类型的值，其默认值为false。

语法:

设置enableCrosshairs属性。

$('Selector').jqxChart({ enableCrosshairs : boolean});

返回enableCrosshairs属性。

var enableCrosshairs = 
        $('Selector').jqxChart('enableCrosshairs');

链接的文件：从链接中下载https://www.jqwidgets.com/download/。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/jqxchart.core.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdraw.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdata.js”></script>

例子：下面的例子说明了jQWidgets中jqxChart enableCrosshairs属性。

<!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/jqxchart.core.js"></script>
    <script type="text/javascript" 
        src="jqwidgets/jqxdraw.js"></script>
    <script type="text/javascript" 
        src="jqwidgets/jqxdata.js"></script>
</head>
  
<body>
    <center>
        <h1 style="color: green">
            GeeksforGeeks
        </h1>
        <h3>jQWidgets jqxChart enableCrosshairs property</h3>
  
        <div id='chartContainer' 
            style="width:700px; height: 500px">
        </div>
    </center>
  
    <script type="text/javascript">
        (document).ready(function () {
            var Data = [{
                name: 'A',
                ques: 1,
            }, {
                name: 'B',
                ques: 1,
            }, {
                name: 'C',
                ques: 3,
            }, {
                name: 'D',
                ques: 21,
            }];
              
            // prepare jqxChart settings
            var settings = {
                showLegend: true,
                enableCrosshairs: true,
                crosshairsColor: 'red',
                title: "Coding Questions",
                description: "Solved Daily",
                source: Data,
                categoryAxis: {
                    dataField: 'name'
                },
                seriesGroups: [{
                    type: 'line',
                    orientation: 'horizontal',
                    columnsGapPercent: 10,
                    valueAxis: {
                        unitInterval: 10,
                        maxValue: 15,
                        displayValueAxis: true,
                        description: '',
                    },
                    series: [{
                        dataField: 'ques',
                        displayText: 'Question Solved'
                    }]
                }]
            };
            ('#chartContainer').jqxChart(settings);
        });
    </script>
</body>
  
</html>