Question

最近我根据Chart.js从v1移动了一个旧项目到v2。

但是我无法重新创建如下所示的多标签工具提示。

在v1中，默认启用此功能。有谁知道我需要更改哪个选项才能存档。

到目前为止我的代码。

new Chart(document.getElementById('mainChart'), {
        type: 'line',
        data: {
          labels: labels,
          datasets: [
            { data: data, label: "Expenses", fill: false
          ]
        },
        options: {
          animation: { duration: 0 },
          hover: { animationDuration: 0 },
          responsiveAnimationDuration: 0
        }
      });

Answer 1

可以使用工具提示部分中的mode选项进行设置。将模式设置为index可能是您要查找的模式。

  new Chart(document.getElementById('mainChart'), {
    type: 'line',
    data: {
      labels: labels,
      datasets: [
        { data: data, label: "Expenses", fill: false }
      ]
    },
    options: {
      animation: { duration: 0 },
      hover: { animationDuration: 0 },
      responsiveAnimationDuration: 0,
      tooltips: { mode: 'index' }             
    }
  });

以下mode: 'index'的示例：

new Chart(document.getElementById('chartJSContainer'), {
      type: 'line',
      data: {
        labels: ["1", "2", "3", "4", "5", "6"],
        datasets: [{
	      		data: [7, 11, 5, 8, 3, 7],
            label: "Income",
            fill: false,
            backgroundColor: 'rgb(54, 162, 235)',
            borderColor: 'rgb(54, 162, 235)',
          }, {
	      		data: [12, 19, 3, 5, 2, 3],
            label: "Expenses",
            fill: false,
            backgroundColor: 'rgb(255, 99, 132)',
            borderColor: 'rgb(255, 99, 132)',
          }
          ]
        },
        options: {
          animation: {
            duration: 0
          },
          hover: {
            animationDuration: 0
          },
          responsiveAnimationDuration: 0,
          tooltips: {
           mode: 'index'
          }
        }
      });

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.1/Chart.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.1/Chart.bundle.min.js"></script>
<body>
  <canvas id="chartJSContainer" width="600" height="400"></canvas>
</body>

Chart.js中的多标签工具提示

1 个答案: