Getting Started with ASP.NET Core Sparkline Control

16 Feb 202413 minutes to read

This section briefly explains about how to include ASP.NET Core Sparkline control in your ASP.NET Core application using Visual Studio.

Prerequisites

System requirements for ASP.NET Core controls

Create ASP.NET Core web application with Razor pages

Install ASP.NET Core package in the application

To add ASP.NET Core controls in the application, open the NuGet package manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), search for Syncfusion.EJ2.AspNet.Core and then install it. Alternatively, you can utilize the following package manager command to achieve the same.

Install-Package Syncfusion.EJ2.AspNet.Core -Version 25.1.35

NOTE

Syncfusion ASP.NET Core controls are available in nuget.org. Refer to NuGet packages topic to learn more about installing NuGet packages in various OS environments. The Syncfusion.EJ2.AspNet.Core NuGet package has dependencies, Newtonsoft.Json for JSON serialization and Syncfusion.Licensing for validating Syncfusion license key.

Add Syncfusion ASP.NET Core Tag Helper

Open ~/Pages/_ViewImports.cshtml file and import the Syncfusion.EJ2 TagHelper.

@addTagHelper *, Syncfusion.EJ2

Add script resources

Here, script is referred using CDN inside the <head> of ~/Pages/Shared/_Layout.cshtml file as follows,

<head>
    ...
    <!-- Syncfusion ASP.NET Core controls scripts -->
    <script src="https://cdn.syncfusion.com/ej2/25.1.35/dist/ej2.min.js"></script>
</head>

NOTE

Checkout the Adding Script Reference topic to learn different approaches for adding script references in your ASP.NET Core application.

Register Syncfusion Script Manager

Also, register the script manager <ejs-script> at the end of <body> in the ASP.NET Core application as follows.

<body>
    ...
    <!-- Syncfusion ASP.NET Core Script Manager -->
    <ejs-scripts></ejs-scripts>
</body>

Add ASP.NET Core Sparkline Control

Now, add the Syncfusion ASP.NET Core Sparkline tag helper in ~/Pages/Index.cshtml page.

<ejs-sparkline id="sparkline">
</ejs-sparkline>

Bind data source to Sparkline

The dataSource property is used for binding data source to the sparkline. This property takes the collection value as input. For example, the list of objects can be provided as input.

@{
    ...
    var data = DataSource.GetData();
}

<div class="spark" align="center">
    <ejs-sparkline id="sparkline" loaded="loaded" height="100px" width="70%" dataSource="data" xName="xval" yName="yval"></ejs-sparkline>
</div>
<style>
    .spark {
        border: 1px solid rgb(209, 209, 209);
        border-radius: 2px;
        width: 100%;
        height: 100%;
    }
</style>
<script>
    function loaded(args)
    { 
        window.sparkline = args.sparkline;
        args.sparkline.loaded = null;
        args.sparkline.refresh();
    }
</script>
public class DataSource
{
    public int x;
    public string xval;
    public double yval;
    public static List<DataSource> GetData()
    {
        List<DataSource> data1 = new List<DataSource>();
        data1.Add(new DataSource() { x = 0, xval = "2005", yval = 20090440 });
        data1.Add(new DataSource() { x = 1, xval = "2006", yval = 20264080 });
        data1.Add(new DataSource() { x = 2, xval = "2007", yval = 20434180 });
        data1.Add(new DataSource() { x = 3, xval = "2008", yval = 21007310 });
        data1.Add(new DataSource() { x = 4, xval = "2009", yval = 21262640 });
        data1.Add(new DataSource() { x = 5, xval = "2010", yval = 21515750 });
        data1.Add(new DataSource() { x = 6, xval = "2011", yval = 21766710 });
        data1.Add(new DataSource() { x = 7, xval = "2012", yval = 22015580 });
        data1.Add(new DataSource() { x = 8, xval = "2013", yval = 22262500 });
        data1.Add(new DataSource() { x = 9, xval = "2014", yval = 22507620 });
        return data1;
    }
}

Press Ctrl+F5 (Windows) or ⌘+F5 (macOS) to run the app. Then, the Syncfusion ASP.NET Core Sparkline control will be rendered in the default web browser.

ASP.NET Core Sparkline Control

Change the type of Sparkline

You can change the sparkline type by setting the type property to Line, Column, WinLoss, Pie, or Area. Here, the sparkline type has been set to area.

@{
    ...
    var data = DataSource.GetData();
}

<div class="spark" align="center">
    <ejs-sparkline id="sparkline" loaded="loaded" type="Area" height="100px" width="70%" dataSource="data" xName="xval" yName="yval"></ejs-sparkline>
</div>
<style>
    .spark {
        border: 1px solid rgb(209, 209, 209);
        border-radius: 2px;
        width: 100%;
        height: 100%;
    }
</style>
<script>
    function loaded(args)
    { 
        window.sparkline = args.sparkline;
        args.sparkline.loaded = null;
        args.sparkline.refresh();
    }
</script>
public class DataSource
{
    public int x;
    public string xval;
    public double yval;
    public static List<DataSource> GetData()
    {
        List<DataSource> data1 = new List<DataSource>();
        data1.Add(new DataSource() { x = 0, xval = "2005", yval = 20090440 });
        data1.Add(new DataSource() { x = 1, xval = "2006", yval = 20264080 });
        data1.Add(new DataSource() { x = 2, xval = "2007", yval = 20434180 });
        data1.Add(new DataSource() { x = 3, xval = "2008", yval = 21007310 });
        data1.Add(new DataSource() { x = 4, xval = "2009", yval = 21262640 });
        data1.Add(new DataSource() { x = 5, xval = "2010", yval = 21515750 });
        data1.Add(new DataSource() { x = 6, xval = "2011", yval = 21766710 });
        data1.Add(new DataSource() { x = 7, xval = "2012", yval = 22015580 });
        data1.Add(new DataSource() { x = 8, xval = "2013", yval = 22262500 });
        data1.Add(new DataSource() { x = 9, xval = "2014", yval = 22507620 });
        return data1;
    }
}

ASP.NET Core Area Sparkline

Enable tooltip for Sparkline

The sparkline displays additional information through tooltip when the mouse is hovered over the sparkline. You can enable tooltip by setting the visible property to true in tooltipSettings object.

@{
    ...
    var data = DataSource.GetData();
}

<div class="spark" align="center">
    <ejs-sparkline id="sparkline" loaded="loaded" type="Area" height="100px" width="70%" dataSource="data" xName="xval" yName="yval">
            <e-sparkline-tooltipsettings visible="true" format="${xval} : ${yval}"></e-sparkline-tooltipsettings>
    </ejs-sparkline>
</div>
<style>
    .spark {
        border: 1px solid rgb(209, 209, 209);
        border-radius: 2px;
        width: 100%;
        height: 100%;
    }
</style>
<script>
    function loaded(args)
    { 
        window.sparkline = args.sparkline;
        args.sparkline.loaded = null;
        args.sparkline.refresh();
    }
</script>
public class DataSource
{
    public int x;
    public string xval;
    public double yval;
    public static List<DataSource> GetData()
    {
        List<DataSource> data1 = new List<DataSource>();
        data1.Add(new DataSource() { x = 0, xval = "2005", yval = 20090440 });
        data1.Add(new DataSource() { x = 1, xval = "2006", yval = 20264080 });
        data1.Add(new DataSource() { x = 2, xval = "2007", yval = 20434180 });
        data1.Add(new DataSource() { x = 3, xval = "2008", yval = 21007310 });
        data1.Add(new DataSource() { x = 4, xval = "2009", yval = 21262640 });
        data1.Add(new DataSource() { x = 5, xval = "2010", yval = 21515750 });
        data1.Add(new DataSource() { x = 6, xval = "2011", yval = 21766710 });
        data1.Add(new DataSource() { x = 7, xval = "2012", yval = 22015580 });
        data1.Add(new DataSource() { x = 8, xval = "2013", yval = 22262500 });
        data1.Add(new DataSource() { x = 9, xval = "2014", yval = 22507620 });
        return data1;
    }
}

ASP.NET Core Sparkline with Tooltip

NOTE

View Sample in GitHub.

See also