0

我试图在图表工具提示上找出 ExtJs 中的事件侦听器。我有柱形图，默认情况下，它有带有相应值的工具提示。

当我单击图表的条形或列时，我必须在警报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>

当您运行此代码时，默认情况下您将拥有具有值的面积图和工具提示，但我的要求是当我单击图表时，该值应显示在当前显示在工具提示中的警报框中... .

4

0 回答 0