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What is trackball and how to use trackball in ASP.NET MVC Chart?

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Trackball is an interactive feature in the ASP.NET MVC Chart that is used to display details about a point in the Chart close to the current mouse location. Trackball displays a vertical line, marker, symbols like circle, star, etc., and tooltip at the point closest to the current mouse location for each series.

Trackball is available for only one point in each series when more than one series are present in the series collection.

Trackball is enabled by setting the visible property of the crosshair to true and the type property of the crosshair to trackball. It provides options to customize the trackball line and marker. Trackball displays crosshair labels in the axis when the visible property of the crosshairLabel is set to true in the horizontal axis.

The following code example illustrates this.

CSHTML

@(Html.EJ().Chart("container")
     .Crosshair(trackball=>
        trackball.Visible(true)
        .Type(CrosshairType.Trackball)
        .Line(line=>line.Color(("transparent))
        . . . . . . .
     )
     . . . . . . .
)

The following screenshot displays the Chart with trackball. Trackball line is not visible in the screenshot because of setting transparent color to the trackball line.

The Chart with trackballConclusion


I hope you enjoyed learning about what is trackball and how to use trackball in ASP.NET MVC Chart.

You can refer to our ASP.NET MVC Charts feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our ASP.NET MVC Charts example to understand how to create and manipulate data.

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 forumsDirect-Trac, or feedback portal. We are always happy to assist you!

 

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