Working with Data in ASP.NET Webforms Chart

22 Mar 20229 minutes to read

Local Data

There are two ways to provide local data to chart.

  1. You can bind the data to the chart by using the DataSource property of the series and then you need to map the X and Y value with the XName and YName properties respectively.


For the OHLC type series, you have to map four dataSource fields High, Low, Open and Close to bind the data source and for the bubble series you have to map the Size field along with the XName and YName.

  • HTML
  • <ej:Chart ID="Chart1" runat="server" OnClientLoad="onChartLoad"> 
           <ej:Series XName="Month" YName="Sales">
  • JS
  • var chartData = [
              { 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 }];
        function onChartLoad(sender) {
            var data = GetData();
            sender.model.series[0].dataSource = chartData;
            sender.model.series[0].xName = "month";
            sender.model.series[0].yName = "sales";

    ASP.NET Webforms Chart Working with Data

    Click here to view the local data binding online demo sample.

    2.You can also plot data to chart using Points option in the series. Using this property you can customize each and every point in the data.

  • HTML
  • <ej:Chart ID="Chart1" runat="server" OnClientLoad="onchartload"> 
           <ej:Series XName="Month" YName="Sales">
              <%--Adding data points using x and y field of points--%>
                   <ej:Points X="John" Y="10000"></ej:Points>
                   <ej:Points X="Jake" Y="12000"></ej:Points>
                   <ej:Points X="Petter" Y="18000"></ej:Points>
                   <ej:Points X="James" Y="11000"></ej:Points>
                   <ej:Points X="Mary" Y="9700"></ej:Points>

    ASP.NET Webforms Chart using points

    Remote Data

    You can bind the remote data to the chart by using the DataSource and you can use the Query property of the series to filter the data from the dataSource.

  • HTML
  • <ej:Chart ID="Chart1" runat="server"> 
           <ej:Series XName="ShipCity" YName="Freight" Query="ej.Query().from('Orders').take(10)">
  • this.Chart1.Series[0].DataSource = "";

    ASP.NET Webforms Chart Remote Data

    Click here to view the remote data binding online demo sample.

    AngularJS Data Binding

    Typically, you will assign data directly to chart using dataSource property of the series. In AngularJS, you need to bind the variable, which contains data in the AngularJS scope object, to the dataSource property as illustrated in the following code example,


    Essential JS includes AngularJS directives for all controls in the ej.widget.angular.min.js script file.


    All the properties in EjChart supports one way AngularJS binding except inner array properties like series.points[points], series.trendlines[trendlines]. Click here to know more about Essential AngularJS and the properties which support two way AngularJS binding in chart.

  • HTML
  • <html ng-app="syncApp">
        <script type="text/javascript" src=""></script>
        <script src=""></script>
        <script src=""></script>
    	<script src=""></script>
    <body ng-controller="Chart">    
      <div id="chartContainer" style="width:100%" ej-chart
                   e-size-width="800px" e-size-height="600px" 
                                 e-title-text="AngularJS Support" >				           
          <e-series e-name="John" e-dataSource=dataSource e-xName="Day" e-yName="John">					 
        <e-series e-name="Hendry"  e-dataSource=dataSource e-xName="Day" e-yName="Hendry">					   
  • JS
  • //Data source for chart.
            var obj = [
                    { "Day": 1, "John": 57, "Henry": 43 },
                    { "Day": 2, "John": 73, "Henry": 27 },
                    { "Day": 3, "John": 49, "Henry": 51 },
                    { "Day": 4, "John": 63, "Henry": 37 },
                    { "Day": 5, "John": 44, "Henry": 56 },
                    { "Day": 6, "John": 49, "Henry": 51 },
                    { "Day": 7, "John": 61, "Henry": 39 },
                    { "Day": 8, "John": 35, "Henry": 65 },
                    { "Day": 9, "John": 45, "Henry": 55 },
                    { "Day": 10, "John": 37, "Henry": 63 }
            angular.module('syncApp', ['ejangular'])
                .controller('Chart', function ($scope) {
                    //Assigning data to the dataSource variable in the $scope object.
                    $scope.dataSource = obj;

    ASP.NET Webforms Chart AngularJS Data Binding

    Click here to view the AngularJS data binding online demo sample.