How to use marker in ASP.NET Web Forms Chart?

Markers are similar to adornments that is used to represent points in a series. When you place mouse on a marker, it highlights automatically. Refer to Data Labels for using data labels in chart.

Essential Chart support Markers to represent points in a series. You can set Marker to all series or specific series based on the requirement. To enable marker for all the series in chart, you can declare it within commonSeriesOptions of chart.

The online sample with markers in series is available in the following link

Chart Symbols

The visible property of marker is enabled to display marker. You can customize marker size, shape etc.

The following code example explains how to set marker for all series.

ASP 

<ej:Chart ID="container" runat="server">
        <CommonSeriesOptions>
            <Marker Shape="Circle" Visible="true"></Marker>
        </CommonSeriesOptions>
    </ej:Chart>

The following code example explains how to set marker for specific series.

C#

<ej:Chart ID="container" runat="server">
       <Series>
           <ej:Series>
                <Marker Shape="Circle" Visible="true"></Marker>
           </ej:Series>
       </Series>
    </ej:Chart>

Note:

A new version of Essential Studio for ASP.NET is available. Versions prior to the release of Essential Studio 2014, Volume 2 will now be referred to as a classic version. The new ASP.NET suite is powered by Essential Studio for JavaScript providing client-side rendering of HTML 5-JavaScript controls, offering better performance, and better support for touch interactivity. The new version includes all the features of the old version, so migration is easy.

The Classic controls can be used in existing projects; however, if you are starting a new project, we recommend using the latest version of Essential Studio for ASP.NET. Although Syncfusion will continue to support all Classic Versions, we are happy to assist you in migrating to the newest edition.

For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our other controls. If you have any queries or require clarifications, please let us know in the comments section below.

You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!