Line Chart in Vue Component

14 Oct 202424 minutes to read

Line

To render a line series in your chart, you need to follow a few steps to configure it correctly. Here’s a concise guide on how to do this:

• Set the series type: Define the series type as Line in your chart configuration. This indicates that the data should be represented as a line chart, which is ideal for visualizing trends over time or across categories.

• Inject the LineSeries module: Use the provide: { chart: [LineSeries]} method to inject the LineSeries module into your chart. This step is essential, as it ensures that the necessary functionalities for rendering line series are available in your chart.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: 32 },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: 55 },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";

provide('chart', [Category, LineSeries]);

</script>
<style>
#container {
  height: 350px;
}
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: 32 },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: 55 },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison"
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
#container {
  height: 350px;
}
</style>

Binding data with series

You can bind data to the chart using the dataSource property within the series configuration. This allows you to connect a JSON dataset or remote data to your chart. To display the data correctly, map the fields from the data to the chart series xName and yName properties.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: 32 },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: 55 },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";

provide('chart', [Category, LineSeries]);

</script>
<style>
#container {
  height: 350px;
}
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: 32 },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: 55 },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison"
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
#container {
  height: 350px;
}
</style>

Series customization

The following properties can be used to customize the line series.

Fill

The fill property determines the color applied to the series.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' fill='red'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: 32 },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: 55 },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";

provide('chart', [Category, LineSeries]);

</script>
<style>
#container {
  height: 350px;
}
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' fill='red'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: 32 },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: 55 },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison"
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
#container {
  height: 350px;
}
</style>

The fill property can be used to apply a gradient color to the line series. By configuring this property with gradient values, you can create a visually appealing effect in which the color transitions smoothly from one shade to another.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' fill='url(#gradient)'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: 32 },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: 55 },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";

provide('chart', [Category, LineSeries]);

</script>
<style>
#container {
  height: 350px;
}
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' fill='url(#gradient)'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: 32 },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: 55 },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison"
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
#container {
  height: 350px;
}
</style>

Opacity

The opacity property specifies the transparency level of the fill. Adjusting this property allows you to control how opaque or transparent the fill color of the series appears.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' opacity=0.5> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: 32 },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: 55 },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";

provide('chart', [Category, LineSeries]);

</script>
<style>
#container {
  height: 350px;
}
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' opacity=0.5> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: 32 },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: 55 },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison"
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
#container {
  height: 350px;
}
</style>

Dash array

The dashArray property determines the pattern of dashes and gaps in the series.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' dashArray='5,5'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: 32 },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: 55 },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";

provide('chart', [Category, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' dashArray='5,5'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: 32 },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: 55 },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison"
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Width

The width property specifies the stroke width applied to the series.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' width=4> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: 32 },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: 55 },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";

provide('chart', [Category, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' width=4> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: 32 },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: 55 },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison"
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Multicolored line

To render a multicolored line series in your chart, you need to follow a few steps to configure it correctly. Here’s a concise guide on how to do this:

• Set the series type: Define the series type as MultiColoredLine in your chart configuration. This specifies that the series should be rendered as a multicolored line chart, with different segments of the line having distinct colors.

• Inject the MultiColoredLineSeries module: Use the provide: { chart: [MultiColoredLineSeries]} method to inject the MultiColoredLineSeries module in your chart. This step is essential, as it ensures that the necessary functionalities for rendering line series are available in your chart.

• Map individual colors: Utilize the pointColorMapping property to assign individual colors to each data point. This allows you to customize the color of each segment of the line based on your data.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='MultiColoredLine' xName='month' yName='sales' pointColorMapping='color' width=3> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, MultiColoredLineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35, color: '#1f77b4' },
  { month: 'Feb', sales: 28, color: '#ff7f0e' },
  { month: 'Mar', sales: 34, color: '#2ca02c' },
  { month: 'Apr', sales: 32, color: '#d62728' },
  { month: 'May', sales: 40, color: '#9467bd' },
  { month: 'Jun', sales: 32, color: '#8c564b' },
  { month: 'Jul', sales: 35, color: '#e377c2' },
  { month: 'Aug', sales: 55, color: '#7f7f7f' },
  { month: 'Sep', sales: 38, color: '#bcbd22' },
  { month: 'Oct', sales: 30, color: '#17becf' },
  { month: 'Nov', sales: 25, color: '#ff69b4' },
  { month: 'Dec', sales: 32, color: '#ff6347' }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";

provide('chart', [Category, MultiColoredLineSeries]);

</script>
<style>
#container {
  height: 350px;
}
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='MultiColoredLine' xName='month' yName='sales' pointColorMapping='color' width=3> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, MultiColoredLineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35, color: '#1f77b4' },
        { month: 'Feb', sales: 28, color: '#ff7f0e' },
        { month: 'Mar', sales: 34, color: '#2ca02c' },
        { month: 'Apr', sales: 32, color: '#d62728' },
        { month: 'May', sales: 40, color: '#9467bd' },
        { month: 'Jun', sales: 32, color: '#8c564b' },
        { month: 'Jul', sales: 35, color: '#e377c2' },
        { month: 'Aug', sales: 55, color: '#7f7f7f' },
        { month: 'Sep', sales: 38, color: '#bcbd22' },
        { month: 'Oct', sales: 30, color: '#17becf' },
        { month: 'Nov', sales: 25, color: '#ff69b4' },
        { month: 'Dec', sales: 32, color: '#ff6347' }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison"
    };
  },
  provide: {
    chart: [Category, MultiColoredLineSeries]
  }
};
</script>
<style>
#container {
  height: 350px;
}
</style>

Empty points

Data points with null or undefined values are considered empty. Empty data points are ignored and not plotted on the chart.

Mode

Use the mode property to define how empty or missing data points are handled in the series. The default mode for empty points is Gap.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' :emptyPointSettings='emptyPointSettings' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: null },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: undefined },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";
const emptyPointSettings = {
  mode: 'Zero'
};

provide('chart', [Category, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' :emptyPointSettings='emptyPointSettings' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: null },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: undefined },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison",
      emptyPointSettings: {
        mode: 'Zero'
      }
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Fill

Use the fill property to customize the fill color of empty points in the series.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' :emptyPointSettings='emptyPointSettings' :marker='marker' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: null },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: undefined },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";
const marker = { 
  visible: true, 
  width: 7, 
  height: 7, 
  isFilled: true 
};
const emptyPointSettings = {
  mode: 'Zero',
  fill: 'red'
};

provide('chart', [Category, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' :emptyPointSettings='emptyPointSettings' :marker='marker' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: null },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: undefined },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison",
      marker: { 
        visible: true, 
        width: 7, 
        height: 7, 
        isFilled: true 
      },
      emptyPointSettings: {
        mode: 'Zero',
        fill: 'red'
      }
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Border

Use the border property to customize the width and color of the border for empty points.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' :emptyPointSettings='emptyPointSettings' :marker='marker' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: null },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: undefined },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";
const marker = { 
  visible: true, 
  width: 7, 
  height: 7, 
  isFilled: true 
};
const emptyPointSettings = {
  mode: 'Zero',
  fill: 'red',
  border: { color: 'green', width: 2 }
};

provide('chart', [Category, LineSeries]);

</script>
<style>
  #container {
    height: 350px;
  }
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' :emptyPointSettings='emptyPointSettings' :marker='marker' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: null },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: undefined },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison",
      marker: { 
        visible: true, 
        width: 7, 
        height: 7, 
        isFilled: true 
      },
      emptyPointSettings: {
        mode: 'Zero',
        fill: 'red',
        border: { color: 'green', width: 2 }
      }
    };
  },
  provide: {
    chart: [Category, LineSeries]
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Events

Series render

The seriesRender event allows you to customize series properties, such as data, fill, and name, before they are rendered on the chart.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis' :seriesRender='seriesRender'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: 32 },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: 55 },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";

provide('chart', [Category, LineSeries]);

const seriesRender = function (args) {
  args.fill = '#ff6347';
};

</script>
<style>
  #container {
    height: 350px;
  }
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis' :seriesRender='seriesRender'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' width=2> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: 32 },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: 55 },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison"
    };
  },
  provide: {
    chart: [Category, LineSeries]
  },
  methods: {
    seriesRender: function (args) {
      args.fill = '#ff6347';
    }
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

Point render

The pointRender event allows you to customize each data point before it is rendered on the chart.

Composition API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis' :pointRender='pointRender'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' width=2 :marker='marker'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script setup>
import { provide } from "vue";
import { ChartComponent as EjsChart, SeriesCollectionDirective as ESeriesCollection, SeriesDirective as ESeries, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

const seriesData = [
  { month: 'Jan', sales: 35 },
  { month: 'Feb', sales: 28 },
  { month: 'Mar', sales: 34 },
  { month: 'Apr', sales: 32 },
  { month: 'May', sales: 40 },
  { month: 'Jun', sales: 32 },
  { month: 'Jul', sales: 35 },
  { month: 'Aug', sales: 55 },
  { month: 'Sep', sales: 38 },
  { month: 'Oct', sales: 30 },
  { month: 'Nov', sales: 25 },
  { month: 'Dec', sales: 32 }
];
const primaryXAxis = {
  valueType: 'Category',
  title: 'Month'
};
const primaryYAxis = {
  title: 'Sales count'
};
const title = "Monthly Sales Comparison";
const marker = { visible: true };

provide('chart', [Category, LineSeries]);

const pointRender = function (args) {
  if (args.point.index % 2 !== 0) {
    args.fill = '#ff6347';
  }
  else {
    args.fill = '#009cb8';
  }
};

</script>
<style>
  #container {
    height: 350px;
  }
</style>

Options API (~/src/App.vue)

<template>
  <div id="app">
    <ejs-chart id="container" :title='title' :primaryXAxis='primaryXAxis' :primaryYAxis='primaryYAxis' :pointRender='pointRender'>
      <e-series-collection>
        <e-series :dataSource='seriesData' type='Line' xName='month' yName='sales' width=2 :marker='marker'> </e-series>
      </e-series-collection>
    </ejs-chart>
  </div>
</template>
<script>

import { ChartComponent, SeriesCollectionDirective, SeriesDirective, Category, LineSeries } from "@syncfusion/ej2-vue-charts";

export default {
  name: "App",
  components: {
    'ejs-chart': ChartComponent,
    'e-series-collection': SeriesCollectionDirective,
    'e-series': SeriesDirective
  },
  data() {
    return {
      seriesData: [
        { month: 'Jan', sales: 35 },
        { month: 'Feb', sales: 28 },
        { month: 'Mar', sales: 34 },
        { month: 'Apr', sales: 32 },
        { month: 'May', sales: 40 },
        { month: 'Jun', sales: 32 },
        { month: 'Jul', sales: 35 },
        { month: 'Aug', sales: 55 },
        { month: 'Sep', sales: 38 },
        { month: 'Oct', sales: 30 },
        { month: 'Nov', sales: 25 },
        { month: 'Dec', sales: 32 }
      ],
      primaryXAxis: {
        valueType: 'Category',
        title: 'Month'
      },
      primaryYAxis: {
        title: 'Sales count'
      },
      title: "Monthly Sales Comparison",
      marker: { visible: true }
    };
  },
  provide: {
    chart: [Category, LineSeries]
  },
  methods: {
    pointRender: function (args) {
      if (args.point.index % 2 !== 0) {
        args.fill = '#ff6347';
      }
      else {
        args.fill = '#009cb8';
      }
    }
  }
};
</script>
<style>
  #container {
    height: 350px;
  }
</style>

See also

• Data label
• Tooltip