无法在ChartJS上获取折线图工具提示

Question

我想使用ChartJS创建多线图。多线图工作正常。但工具提示只有我遇到问题。请查看以下代码和图片。

＆＃13;

＆＃13;

var ctx = document.getElementById("myChart").getContext("2d");

var data = {
    labels: ["January", "February", "March", "April", "May", "June", "July"],
    datasets: [
        {
            label: "My First dataset",
            fill: false,
            lineTension: 0.1,
            backgroundColor: "rgba(75,192,192,0.4)",
            borderColor: "rgba(75,192,192,1)",
            borderCapStyle: 'butt',
            borderDash: [],
            borderDashOffset: 0.0,
            borderJoinStyle: 'miter',
            pointBorderColor: "rgba(75,192,192,1)",
            pointBackgroundColor: "#fff",
            pointBorderWidth: 1,
            pointHoverRadius: 5,
            pointHoverBackgroundColor: "rgba(75,192,192,1)",
            pointHoverBorderColor: "rgba(220,220,220,1)",
            pointHoverBorderWidth: 2,
            pointRadius: 1,
            pointHitRadius: 10,
            data: [65, 59, 80, 81, 56, 55, 40],
            spanGaps: false,
        },
      {
            label: "My Second dataset",
            fill: false,
            lineTension: 0.1,
            backgroundColor: "rgba(255, 99, 132, 1)",
            borderColor: "rgba(255, 99, 132, 1)",
            borderCapStyle: 'butt',
            borderDash: [],
            borderDashOffset: 0.0,
            borderJoinStyle: 'miter',
            pointBorderColor: "rgba(255, 99, 132, 1)",
            pointBackgroundColor: "#fff",
            pointBorderWidth: 1,
            pointHoverRadius: 5,
            pointHoverBackgroundColor: "rgba(255, 99, 132, 1)",
            pointHoverBorderColor: "rgba(255, 99, 132, 1)",
            pointHoverBorderWidth: 2,
            pointRadius: 1,
            pointHitRadius: 10,
            data: [40, 59, 80, 100, 56, 80, 70],
            spanGaps: false,
        }
    ]
};

var myLineChart = new Chart(ctx, {
    type: 'line',
    data: data
});

＆＃13;

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.4.0/Chart.min.js"></script>


<canvas id="myChart" width="400" height="400"></canvas>

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1月份我有两个数据[＆＃34;我的第一个数据集＆＃34;：65，＆＃34;我的第二个数据集＆＃34;：40]因此工具提示正确显示但是在三月份我有两个数据[＆＃34;我的第一个数据集＆＃34;：80，＆＃34;我的第二个数据集＆＃34;：80]但工具提示仅显示＆＃34;我的第一个数据集＆＃34;价值只是因为我无法找到＆＃34;我的第二个数据集＆＃34;值。

Answer 1

我试过这样的。现在它的工作正常

options: {
                tooltips: {
                    mode: 'label'
                }
         }