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How to add a new series dynamically in Chart?

Platform: ASP.NET Web Forms |
Control: Chart |
Published Date: February 12, 2015 |
Last Revised Date: July 2, 2019

Essential Chart supports dynamically customizing all the properties with the instance of Chart in client-side. You can create an instance for chart, by calling the ejChart constructor method with the string “instance” as parameter. To add a new series dynamically, add a series object to the series collection of chart instance. The following code illustrates this.

ASP

    <ej:Chart ID="container" runat="server">
        <Series>
            <ej:Series>
                <Points>
                    <ej:Points X="India" Y="25"></ej:Points>
                    <ej:Points X="Australia" Y="32"></ej:Points>
                    <ej:Points X="China" Y="41"></ej:Points>
                    <ej:Points X="Japan" Y="30"></ej:Points>
                    <ej:Points X="France" Y="28"></ej:Points>
                </Points>
            </ej:Series>
        </Series>
    </ej:Chart>
    <input type="button" onclick="AddSeries()" value="Add Series" />
    <script type="text/javascript">
        function AddSeries() {
            //Creating an instance of Chart
            var Chart = $("#container").ejChart("instance");
            //Adding a new series dynamically using Chart instance
            Chart.model.series[Chart.model.series.length] = { points: [{ x: 'Australia', y: 20 }, { x: 'China', y: 15 }], name: 'Dynamic Series' }
            //Redrawing chart after updating series collection
            Chart.redraw();
        }
    </script>

Screenshots:

Chart before adding dynamic series

Figure 1: Chart without series

 

Chart after adding dynamic series

Figure 2: After adding series

Sample link:

A sample for dynamically adding a new series is available in the following link: SampleASP

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