Stacked line Chart in ASP.NET CORE Charts Component

8 Apr 202524 minutes to read

Stacked line

To render a stacked 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 StackingLine in your chart configuration. This indicates that the data should be represented as a stacked line chart, allowing multiple data series to be stacked on top of each other. This makes it easier to compare the contribution of each series to the total over a specific period.
<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" width="2" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" width="2" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" width="2" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" width="2" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
                new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
                new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
                new StackedLineChartData { x= "Clothes", y= 70, y1= 30, y2= 60, y3= 180 },
                new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
                new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
                new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
                new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= 55, y3= 75 },
                new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
                new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
                new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
                new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string x;
            public double y;
            public double y1;
            public double y2;
            public double y3;
        }

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.

<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" width="2" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" width="2" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" width="2" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" width="2" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
                new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
                new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
                new StackedLineChartData { x= "Clothes", y= 70, y1= 30, y2= 60, y3= 180 },
                new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
                new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
                new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
                new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= 55, y3= 75 },
                new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
                new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
                new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
                new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string x;
            public double y;
            public double y1;
            public double y2;
            public double y3;
        }

Series customization

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

Fill

The fill property determines the color applied to the series.

<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" yName="y" type="StackingLine" fill="#ff4251">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" yName="y1" type="StackingLine" fill="#4C4C4C">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" yName="y2" type="StackingLine" fill="#794F1B">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" yName="y3" type="StackingLine" fill="#1a9a6f">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
                new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
                new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
                new StackedLineChartData { x= "Clothes", y= 70, y1= 30, y2= 60, y3= 180 },
                new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
                new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
                new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
                new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= 55, y3= 75 },
                new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
                new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
                new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
                new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string x;
            public double y;
            public double y1;
            public double y2;
            public double y3;
        }

The fill property can be used to apply a gradient color to the stacked 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.

<svg style="width:1px; height:1px">
            <defs>
                <linearGradient id="gradient1">
                    <stop offset="0%" style="stop-color:coral;stop-opacity:5" />
                    <stop offset="50%" style="stop-color:mediumseagreen;stop-opacity:5" />
                </linearGradient>
            </defs>
</svg>

<svg style="width:1px; height:1px">
    <defs>
        <linearGradient id="gradient2">
            <stop offset="0%" style="stop-color:darkred;stop-opacity:5" />
            <stop offset="50%" style="stop-color:darkorange;stop-opacity:5" />
        </linearGradient>
    </defs>
</svg>

<svg style="width:1px; height:1px">
    <defs>
        <linearGradient id="gradient3">
            <stop offset="0%" style="stop-color:darkmagenta;stop-opacity:5" />
            <stop offset="50%" style="stop-color:darkcyan;stop-opacity:5" />
        </linearGradient>
    </defs>
</svg>

<svg style="width:1px; height:1px">
    <defs>
        <linearGradient id="gradient4">
            <stop offset="0%" style="stop-color:darkviolet;stop-opacity:5" />
            <stop offset="50%" style="stop-color:darkgoldenrod;stop-opacity:5" />
        </linearGradient>
    </defs>
</svg>

<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" yName="y" type="StackingLine" fill="url(#gradient1)">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" yName="y1" type="StackingLine" fill="url(#gradient2)">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" yName="y2" type="StackingLine" fill="url(#gradient3)">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" yName="y3" type="StackingLine" fill="url(#gradient4)">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
                new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
                new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
                new StackedLineChartData { x= "Clothes", y= 70, y1= 30, y2= 60, y3= 180 },
                new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
                new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
                new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
                new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= 55, y3= 75 },
                new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
                new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
                new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
                new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string x;
            public double y;
            public double y1;
            public double y2;
            public double y3;
        }

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.

<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" opacity="0.7" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" opacity="0.7" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" opacity="0.7" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" opacity="0.7" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
                new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
                new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
                new StackedLineChartData { x= "Clothes", y= 70, y1= 30, y2= 60, y3= 180 },
                new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
                new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
                new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
                new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= 55, y3= 75 },
                new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
                new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
                new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
                new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string x;
            public double y;
            public double y1;
            public double y2;
            public double y3;
        }

Dash array

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

<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" dashArray="5,5" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" dashArray="5,5" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" dashArray="5,5" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" dashArray="5,5" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
                new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
                new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
                new StackedLineChartData { x= "Clothes", y= 70, y1= 30, y2= 60, y3= 180 },
                new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
                new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
                new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
                new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= 55, y3= 75 },
                new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
                new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
                new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
                new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string x;
            public double y;
            public double y1;
            public double y2;
            public double y3;
        }

Width

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

<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" width="2" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" width="2" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" width="2" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" width="2" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
                new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
                new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
                new StackedLineChartData { x= "Clothes", y= 70, y1= 30, y2= 60, y3= 180 },
                new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
                new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
                new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
                new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= 55, y3= 75 },
                new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
                new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
                new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
                new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string x;
            public double y;
            public double y1;
            public double y2;
            public double y3;
        }

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.

<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average"></e-series-emptypointsettings>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average"></e-series-emptypointsettings>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average"></e-series-emptypointsettings>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average"></e-series-emptypointsettings>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
{
    List<StackedLineChartData> chartData = new List<StackedLineChartData>
        {
            new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
            new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
            new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
            new StackedLineChartData { x= "Clothes", y= null, y1= 30, y2= 60, y3= 180 },
            new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
            new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
            new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
            new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= null, y3= 75 },
            new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
            new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
            new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
            new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
        };
        ViewBag.dataSource = chartData;
        ChartEmptyPointSettings chartEmptyPointSettings = new ChartEmptyPointSettings();
        chartEmptyPointSettings.Mode = EmptyPointMode.Average;
        ViewBag.emptyPoint = chartEmptyPointSettings;
        return View();
}


public class StackedLineChartData
{
    public string x;
    public double? y;
    public double y1;
    public double? y2;
    public double y3;
}

Fill

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

<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average" fill="red"></e-series-emptypointsettings>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average" fill="red"></e-series-emptypointsettings>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average" fill="red"></e-series-emptypointsettings>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average" fill="red"></e-series-emptypointsettings>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
{
    List<StackedLineChartData> chartData = new List<StackedLineChartData>
    {
        new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
        new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
        new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
        new StackedLineChartData { x= "Clothes", y= null, y1= 30, y2= 60, y3= 180 },
        new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
        new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
        new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
        new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= null, y3= 75 },
        new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
        new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
        new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
        new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
    };
    ViewBag.dataSource = chartData;
    ChartEmptyPointSettings chartEmptyPointSettings = new ChartEmptyPointSettings();
    chartEmptyPointSettings.Mode = EmptyPointMode.Average;
    chartEmptyPointSettings.Fill = "red";
    ViewBag.emptyPoint = chartEmptyPointSettings;
        ChartMarkerSettings marker = new ChartMarkerSettings();
        marker.Visible = true;
        marker.Width = 7;
        marker.Height = 7;
        marker.IsFilled = true;
        ViewBag.marker = marker;
        return View();
}


public class StackedLineChartData
{
    public string x;
    public double? y;
    public double y1;
    public double? y2;
    public double y3;
}

Border

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

<ejs-chart id="container" title="Family Expense for Month">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average">
                <e-emptypointsettings-border width="2" color="green"></e-emptypointsettings-border>
            </e-series-emptypointsettings>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average">
                <e-emptypointsettings-border width="2" color="green"></e-emptypointsettings-border>
            </e-series-emptypointsettings>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average">
                <e-emptypointsettings-border width="2" color="green"></e-emptypointsettings-border>
            </e-series-emptypointsettings>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
            <e-series-emptypointsettings mode="Syncfusion.EJ2.Charts.EmptyPointMode.Average">
                <e-emptypointsettings-border width="2" color="green"></e-emptypointsettings-border>
            </e-series-emptypointsettings>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
{
    List<StackedLineChartData> chartData = new List<StackedLineChartData>
        {
            new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
            new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
            new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
            new StackedLineChartData { x= "Clothes", y= null, y1= 30, y2= 60, y3= 180 },
            new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
            new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
            new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
            new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= null, y3= 75 },
            new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
            new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
            new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
            new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
        };
        ViewBag.dataSource = chartData;
        ChartEmptyPointSettings chartEmptyPointSettings = new ChartEmptyPointSettings();
        chartEmptyPointSettings.Mode = EmptyPointMode.Average;
        chartEmptyPointSettings.Border.Width = 2;
        chartEmptyPointSettings.Border.Color = "green";
        ViewBag.emptyPoint = chartEmptyPointSettings;
        ChartMarkerSettings marker = new ChartMarkerSettings();
        marker.Visible = true;
        marker.Width = 7;
        marker.Height = 7;
        marker.IsFilled = true;
        ViewBag.marker = marker;
        return View();
}


public class StackedLineChartData
{
    public string x;
    public double? y;
    public double y1;
    public double? y2;
    public double y3;
}

Stack labels

The stack labels in stacked charts display cumulative total values for stack segments directly using data labels. If a stacked point has negative values, the stack labels are displayed below the point.

<ejs-chart id="container">
    <e-chart-primaryxaxis valueType="@Syncfusion.EJ2.Charts.ValueType.Category" interval="1">
    </e-chart-primaryxaxis>
    <e-chart-primaryyaxis title="Expense" interval="100" labelFormat="${value}">
    </e-chart-primaryyaxis>
    <e-chart-stacklabels visible="true"></e-chart-stacklabels>
    <e-chart-tooltipsettings enable="true"></e-chart-tooltipsettings>
    <e-chart-chartarea>
        <e-chartarea-border width="0"></e-chartarea-border>
    </e-chart-chartarea>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="X" yName="Y" type="@Syncfusion.EJ2.Charts.ChartSeriesType.StackingLine">
            <e-series-marker>
                 <e-series-datalabel visible="true"></e-series-datalabel>
             </e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="X" yName="Y1" type="@Syncfusion.EJ2.Charts.ChartSeriesType.StackingLine">
            <e-series-marker>
                 <e-series-datalabel visible="true"></e-series-datalabel>
             </e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="X" yName="Y2" type="@Syncfusion.EJ2.Charts.ChartSeriesType.StackingLine">
            <e-series-marker>
                 <e-series-datalabel visible="true"></e-series-datalabel>
             </e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="X" yName="Y3" type="@Syncfusion.EJ2.Charts.ChartSeriesType.StackingLine">
            <e-series-marker>
                 <e-series-datalabel visible="true"></e-series-datalabel>
             </e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { X = "Food", Y = 90, Y1 = 40, Y2 = 70, Y3 = 120 },
                new StackedLineChartData { X = "Transport", Y = 80, Y1 = 90, Y2 = 110, Y3 = 70 },
                new StackedLineChartData { X = "Medical", Y = 50, Y1 = 80, Y2 = 120, Y3 = 50 },
                new StackedLineChartData { X = "Clothes", Y = 70, Y1 = 30, Y2 = 60, Y3 = 180 },
                new StackedLineChartData { X = "Personal Care", Y = 30, Y1 = 80, Y2 = 80, Y3 = 30 },
                new StackedLineChartData { X = "Books", Y = 10, Y1 = 40, Y2 = 30, Y3 = 270 },
                new StackedLineChartData { X = "Fitness", Y = 100,Y1 = 30, Y2 = 70, Y3 = 40 },
                new StackedLineChartData { X = "Electricity", Y = 55, Y1 = 95, Y2 = 55, Y3 = 75 },
                new StackedLineChartData { X = "Tax", Y = 20, Y1 = 50, Y2 = 40, Y3 = 65 },
                new StackedLineChartData { X = "Pet Care", Y = 40, Y1 = 20, Y2 = 80, Y3 = 95 },
                new StackedLineChartData { X = "Education", Y = 45, Y1 = 15, Y2 = 45, Y3 = 195 },
                new StackedLineChartData { X = "Entertainment", Y = 75, Y1 = 45, Y2 = 65, Y3 = 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string X;
            public double Y;
            public double Y1;
            public double Y2;
            public double Y3;
        }

Stack labels customization

Stack labels have various properties for customization to enhance the visual based on your requirements:

  • Visible - Specifies whether stack labels are visible. Setting to true will display the labels. Default is false.
  • Fill - Defines the background color of the stack labels. Accepts valid CSS color strings (hex, RGBA, etc.). Default is transparent.
  • Format - Formats the text displayed in the stack labels. Supports placeholders like {value}. Default is null.
  • Angle - Specifies the rotation angle for stack labels in degrees. Default is 0.
  • Rx - Defines the rounded corner radius along the X-axis (horizontal direction) for the stack label background. Default is 5.
  • Ry - Defines the rounded corner radius along the Y-axis (vertical direction) for the stack label background. Default is 5.
  • Margin - Configures the margin around the stack label (left, right, top, and bottom).
  • Border - Configures the appearance of the stack label’s border.
  • Font - Customizes the stack label text, including font size, color, style, weight, and family.
<ejs-chart id="container">
    <e-chart-primaryxaxis valueType="@Syncfusion.EJ2.Charts.ValueType.Category" interval="1">
    </e-chart-primaryxaxis>
    <e-chart-primaryyaxis title="Expense" interval="100" labelFormat="${value}">
    </e-chart-primaryyaxis>
    <e-chart-stacklabels visible="true" fill="rgba(0, 123, 255, 0.5)" format="{value}" angle="45" rx="10" ry="10">
    </e-chart-stacklabels>
    <e-chart-tooltipsettings enable="true"></e-chart-tooltipsettings>
    <e-chart-chartarea>
        <e-chartarea-border width="0"></e-chartarea-border>
    </e-chart-chartarea>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="X" yName="Y" type="@Syncfusion.EJ2.Charts.ChartSeriesType.StackingLine">
            <e-series-marker>
                 <e-series-datalabel visible="true"></e-series-datalabel>
             </e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="X" yName="Y1" type="@Syncfusion.EJ2.Charts.ChartSeriesType.StackingLine">
            <e-series-marker>
                 <e-series-datalabel visible="true"></e-series-datalabel>
             </e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="X" yName="Y2" type="@Syncfusion.EJ2.Charts.ChartSeriesType.StackingLine">
            <e-series-marker>
                 <e-series-datalabel visible="true"></e-series-datalabel>
             </e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="X" yName="Y3" type="@Syncfusion.EJ2.Charts.ChartSeriesType.StackingLine">
            <e-series-marker>
                 <e-series-datalabel visible="true"></e-series-datalabel>
             </e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { X = "Food", Y = 90, Y1 = 40, Y2 = 70, Y3 = 120 },
                new StackedLineChartData { X = "Transport", Y = 80, Y1 = 90, Y2 = 110, Y3 = 70 },
                new StackedLineChartData { X = "Medical", Y = 50, Y1 = 80, Y2 = 120, Y3 = 50 },
                new StackedLineChartData { X = "Clothes", Y = 70, Y1 = 30, Y2 = 60, Y3 = 180 },
                new StackedLineChartData { X = "Personal Care", Y = 30, Y1 = 80, Y2 = 80, Y3 = 30 },
                new StackedLineChartData { X = "Books", Y = 10, Y1 = 40, Y2 = 30, Y3 = 270 },
                new StackedLineChartData { X = "Fitness", Y = 100,Y1 = 30, Y2 = 70, Y3 = 40 },
                new StackedLineChartData { X = "Electricity", Y = 55, Y1 = 95, Y2 = 55, Y3 = 75 },
                new StackedLineChartData { X = "Tax", Y = 20, Y1 = 50, Y2 = 40, Y3 = 65 },
                new StackedLineChartData { X = "Pet Care", Y = 40, Y1 = 20, Y2 = 80, Y3 = 95 },
                new StackedLineChartData { X = "Education", Y = 45, Y1 = 15, Y2 = 45, Y3 = 195 },
                new StackedLineChartData { X = "Entertainment", Y = 75, Y1 = 45, Y2 = 65, Y3 = 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string X;
            public double Y;
            public double Y1;
            public double Y2;
            public double Y3;
        }

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.

<ejs-chart id="container" title="Family Expense for Month" seriesRender="changeColor">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" width="2" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" width="2" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" width="2" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" width="2" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>

<script>
    function changeColor(args) {
        if (args.series.index === 0) {
            args.fill = '#ff4251';
        }
        else if (args.series.index === 1) {
            args.fill = '#4C4C4C';
        }
        else if (args.series.index === 2) {
            args.fill = '#794F1B';
        }
        else if (args.series.index === 3) {
            args.fill = '#1a9a6f';
        }
    }
</script>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
                new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
                new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
                new StackedLineChartData { x= "Clothes", y= 70, y1= 30, y2= 60, y3= 180 },
                new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
                new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
                new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
                new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= 55, y3= 75 },
                new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
                new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
                new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
                new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string x;
            public double y;
            public double y1;
            public double y2;
            public double y3;
        }

Point render

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

<ejs-chart id="container" title="Family Expense for Month" pointRender="changeColor">
    <e-chart-primaryxaxis valueType="Category" interval="1">
    </e-chart-primaryxaxis>
    <e-series-collection>
        <e-series dataSource="ViewBag.dataSource" name="John" xName="x" width="2" yName="y" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Peter" xName="x" width="2" yName="y1" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Steve" xName="x" width="2" yName="y2" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
        <e-series dataSource="ViewBag.dataSource" name="Charle" xName="x" width="2" yName="y3" type="StackingLine">
            <e-series-marker visible="true"></e-series-marker>
        </e-series>
    </e-series-collection>
</ejs-chart>

<script>
    function changeColor(args) {
        if (args.point.y < 100) {
            args.fill = '#ff6347';
        }
        else {
            args.fill = '#009cb8';
        }
    }
</script>
public ActionResult Index()
        {
            List<StackedLineChartData> chartData = new List<StackedLineChartData>
            {
                new StackedLineChartData { x= "Food", y= 90, y1= 40, y2= 70, y3= 120 },
                new StackedLineChartData { x= "Transport", y= 80, y1= 90, y2= 110, y3= 70 },
                new StackedLineChartData { x= "Medical", y= 50, y1= 80, y2= 120, y3= 50 },
                new StackedLineChartData { x= "Clothes", y= 70, y1= 30, y2= 60, y3= 180 },
                new StackedLineChartData { x= "Personal Care", y= 30, y1= 80, y2= 80, y3= 30 },
                new StackedLineChartData { x= "Books", y= 10, y1= 40, y2= 30, y3= 270 },
                new StackedLineChartData { x= "Fitness", y= 100,y1= 30, y2= 70, y3= 40 },
                new StackedLineChartData { x= "Electricity", y= 55, y1= 95, y2= 55, y3= 75 },
                new StackedLineChartData { x= "Tax", y= 20, y1= 50, y2= 40, y3= 65 },
                new StackedLineChartData { x= "Pet Care", y= 40, y1= 20, y2= 80, y3= 95 },
                new StackedLineChartData { x= "Education", y= 45, y1= 15, y2= 45, y3= 195 },
                new StackedLineChartData { x= "Entertainment", y= 75, y1= 45, y2= 65, y3= 115 }
            };
            ViewBag.dataSource = chartData;
            return View();
        }
        public class StackedLineChartData
        {
            public string x;
            public double y;
            public double y1;
            public double y2;
            public double y3;
        }

See also