Question

我试图在图表工具提示中找出ExtJs中的事件监听器。我有柱形图，默认情况下，它有工具提示和相应的值。

当我点击图表的条形图或列时，我必须在警告框中显示这些工具提示值。

谢谢！

这是面积图的javascript代码：

Ext.require('Ext.chart.*');
Ext.require(['Ext.Window', 'Ext.fx.target.Sprite', 'Ext.layout.container.Fit', 'Ext.window.MessageBox']);

Ext.onReady(function () {


    var chart = Ext.create('Ext.chart.Chart', {
            id: 'chartCmp',
            xtype: 'chart',
            style: 'background:#fff',
            animate: true,
            store: store1,
            legend: {
                position: 'bottom'
            },
            axes: [{
                type: 'Numeric',
                grid: true,
                position: 'left',
                fields: ['data1', 'data2', 'data3', 'data4', 'data5', 'data6', 'data7'],
                title: 'Number of Hits',
                grid: {
                    odd: {
                        opacity: 1,
                        fill: '#ddd',
                        stroke: '#bbb',
                        'stroke-width': 1
                    }
                },
                minimum: 0,
                adjustMinimumByMajorUnit: 0
            }, {
                type: 'Category',
                position: 'bottom',
                fields: ['name'],
                title: 'Month of the Year',
                grid: true,
                label: {
                    rotate: {
                        degrees: 315
                    }
                }
            }],
            series: [{
                type: 'area',
                highlight: false,
                axis: 'left',
                xField: 'name',
                yField: ['data1', 'data2', 'data3', 'data4', 'data5', 'data6', 'data7'],
                style: {
                    opacity: 0.93
                }
            }]
        });

    var win = Ext.create('Ext.Window', {
        width: 800,
        height: 600,
        minHeight: 400,
        minWidth: 550,
        hidden: false,
        shadow: false,
        maximizable: true,
        title: 'Area Chart',
        renderTo: Ext.getBody(),
        layout: 'fit',
        tbar: [{
            text: 'Save Chart',
            handler: function() {
                Ext.MessageBox.confirm('Confirm Download', 'Would you like to download the chart as an image?', function(choice){
                    if(choice == 'yes'){
                        chart.save({
                            type: 'image/png'
                        });
                    }
                });
            }
        }, {
            text: 'Reload Data',
            handler: function() {
                store1.loadData(generateData());
            }
        }, {
            enableToggle: true,
            pressed: true,
            text: 'Animate',
            toggleHandler: function(btn, pressed) {
                var chart = Ext.getCmp('chartCmp');
                chart.animate = pressed ? { easing: 'ease', duration: 500 } : false;
            }
        }],
        items: chart
    }); 
});

这是html代码：

<html>
<head>
    <title>Area Chart Example</title>
    <link rel="stylesheet" type="text/css" href="../../css/ext-all.css">
    <script type="text/javascript" src="../../js/ext-debug.js"></script>
    <script type="text/javascript" src="../../js/ext-all.js"></script>
    <script type="text/javascript" src="../../js/example-data.js"></script>
    <script type="text/javascript" src="areachart.js"></script>

</head>
<body>

</body>
</html>

当你运行这段代码时，默认情况下你会有区域图表和工具提示的值，但我的要求是当我点击图表然后该值应该显示在当前工具提示中显示的警告框中....

在警告框中显示Extjs图表工具提示值

0 个答案: