Tooltip in ASP.NET CORE 3D Chart Component

9 Jan 202414 minutes to read

The 3D Chart will display details about the points through tooltip, when the mouse is moved over the specific point.

By default, tooltip is not visible. The tooltip can be enabled by setting the Enable property in TooltipSettings to true.

CSHTML
Default-tooltip.cs
<ejs-chart3d id="container" wallColor="transparent" enableRotation="true" rotation="7" tilt="10" depth="100">
    <e-chart3d-primaryxaxis valueType="@Syncfusion.EJ2.Charts.ValueType.Category"
        labelPlacement="@Syncfusion.EJ2.Charts.LabelPlacement.BetweenTicks" labelRotation="-45">
    </e-chart3d-primaryxaxis>
    <e-chart3d-series-collection>
        <e-chart3d-series dataSource="ViewBag.dataSource" xName="month" yName="sales"
            type="@Syncfusion.EJ2.Charts.Chart3DSeriesType.Column"></e-chart3d-series>
    </e-chart3d-series-collection>
    <e-chart3d-tooltipsettings enable="true">
    </e-chart3d-tooltipsettings>
</ejs-chart3d>
public ActionResult Index()
{
    List<ChartData> chartData = new List<ChartData>
    {
        new ChartData { month= "Jan", sales= 35 },
        new ChartData { month= "Feb", sales= 28 },
        new ChartData { month= "Mar", sales= 34 },
        new ChartData { month= "Apr", sales= 32 },
        new ChartData { month= "May", sales= 40 },
        new ChartData { month= "Jun", sales= 32 },
        new ChartData { month= "Jul", sales= 35 },
        new ChartData { month= "Aug", sales= 55 },
        new ChartData { month= "Sep", sales= 38 },
        new ChartData { month= "Oct", sales= 30 },
        new ChartData { month= "Nov", sales= 25 },
        new ChartData { month= "Dec", sales= 32 }
    };
    ViewBag.dataSource = chartData;
    return View();
}
public class ChartData
{
    public string month;
    public double sales;
}

By default, tooltip track the mouse movement, but the tooltip can be set in fixed position by using the Location property.

CSHTML
Fixed-tooltip.cs
<ejs-chart3d id="container" wallColor="transparent" enableRotation="true" rotation="7" tilt="10" depth="100">
    <e-chart3d-primaryxaxis valueType="@Syncfusion.EJ2.Charts.ValueType.Category"
        labelPlacement="@Syncfusion.EJ2.Charts.LabelPlacement.BetweenTicks" labelRotation="-45">
    </e-chart3d-primaryxaxis>
    <e-chart3d-series-collection>
        <e-chart3d-series dataSource="ViewBag.dataSource" xName="month" yName="sales"
            type="@Syncfusion.EJ2.Charts.Chart3DSeriesType.Column"></e-chart3d-series>
    </e-chart3d-series-collection>
    <e-chart3d-tooltipsettings enable="true" x="120" y="20">
    </e-chart3d-tooltipsettings>
</ejs-chart3d>
public ActionResult Index()
{
    List<ChartData> chartData = new List<ChartData>
    {
        new ChartData { month= "Jan", sales= 35 },
        new ChartData { month= "Feb", sales= 28 },
        new ChartData { month= "Mar", sales= 34 },
        new ChartData { month= "Apr", sales= 32 },
        new ChartData { month= "May", sales= 40 },
        new ChartData { month= "Jun", sales= 32 },
        new ChartData { month= "Jul", sales= 35 },
        new ChartData { month= "Aug", sales= 55 },
        new ChartData { month= "Sep", sales= 38 },
        new ChartData { month= "Oct", sales= 30 },
        new ChartData { month= "Nov", sales= 25 },
        new ChartData { month= "Dec", sales= 32 }
    };
    ViewBag.dataSource = chartData;
    return View();
}
public class ChartData
{
    public string month;
    public double sales;
}

By default, tooltip shows information of x and y value in points. In addition to that, more information can be shown in tooltip by using the Format property. For example the format ${series.name} : ${point.y} shows series name and point y value.

CSHTML
Format-tooltip.cs
<ejs-chart3d id="container" wallColor="transparent" enableRotation="true" rotation="7" tilt="10" depth="100">
    <e-chart3d-primaryxaxis valueType="@Syncfusion.EJ2.Charts.ValueType.Category"
        labelPlacement="@Syncfusion.EJ2.Charts.LabelPlacement.BetweenTicks" labelRotation="-45">
    </e-chart3d-primaryxaxis>
    <e-chart3d-series-collection>
        <e-chart3d-series dataSource="ViewBag.dataSource" xName="month" yName="sales" name="Month"
            type="@Syncfusion.EJ2.Charts.Chart3DSeriesType.Column"></e-chart3d-series>
    </e-chart3d-series-collection>
    <e-chart3d-tooltipsettings enable="true" header="Unemployment" format="<b>${series.name} : ${point.y}</b>">
    </e-chart3d-tooltipsettings>
</ejs-chart3d>
public ActionResult Index()
{
    List<ChartData> chartData = new List<ChartData>
    {
        new ChartData { month= "Jan", sales= 35 },
        new ChartData { month= "Feb", sales= 28 },
        new ChartData { month= "Mar", sales= 34 },
        new ChartData { month= "Apr", sales= 32 },
        new ChartData { month= "May", sales= 40 },
        new ChartData { month= "Jun", sales= 32 },
        new ChartData { month= "Jul", sales= 35 },
        new ChartData { month= "Aug", sales= 55 },
        new ChartData { month= "Sep", sales= 38 },
        new ChartData { month= "Oct", sales= 30 },
        new ChartData { month= "Nov", sales= 25 },
        new ChartData { month= "Dec", sales= 32 }
    };
    ViewBag.dataSource = chartData;
    return View();
}
public class ChartData
{
    public string month;
    public double sales;
}

Any HTML elements can be displayed in the tooltip by using the Template property of the tooltip. The ${x} and ${y} can be used as place holders in the HTML element to display the x and y values of the corresponding data point.

CSHTML
Template.cs
<ejs-chart3d id="container" wallColor="transparent" enableRotation="true" rotation="7" tilt="10" depth="100">
    <e-chart3d-primaryxaxis valueType="@Syncfusion.EJ2.Charts.ValueType.Category"
        labelPlacement="@Syncfusion.EJ2.Charts.LabelPlacement.BetweenTicks" labelRotation="-45">
    </e-chart3d-primaryxaxis>
    <e-chart3d-series-collection>
        <e-chart3d-series dataSource="ViewBag.dataSource" xName="month" yName="sales"
            type="@Syncfusion.EJ2.Charts.Chart3DSeriesType.Column"></e-chart3d-series>
    </e-chart3d-series-collection>
    <e-chart3d-tooltipsettings enable="true" template="#Unemployment">
    </e-chart3d-tooltipsettings>
</ejs-chart3d>
public ActionResult Index()
{
    List<ChartData> chartData = new List<ChartData>
    {
        new ChartData { month= "Jan", sales= 35 },
        new ChartData { month= "Feb", sales= 28 },
        new ChartData { month= "Mar", sales= 34 },
        new ChartData { month= "Apr", sales= 32 },
        new ChartData { month= "May", sales= 40 },
        new ChartData { month= "Jun", sales= 32 },
        new ChartData { month= "Jul", sales= 35 },
        new ChartData { month= "Aug", sales= 55 },
        new ChartData { month= "Sep", sales= 38 },
        new ChartData { month= "Oct", sales= 30 },
        new ChartData { month= "Nov", sales= 25 },
        new ChartData { month= "Dec", sales= 32 }
    };
    ViewBag.dataSource = chartData;
    return View();
}
public class ChartData
{
    public string month;
    public double sales;
}

The Fill and Border properties are used to customize the background color and border of the tooltip respectively. The TextStyle property in the tooltip is used to customize the font of the tooltip text.

CSHTML
Custom-tooltip.cs
<ejs-chart3d id="container" wallColor="transparent" enableRotation="true" rotation="7" tilt="10" depth="100">
    <e-chart3d-primaryxaxis valueType="@Syncfusion.EJ2.Charts.ValueType.Category"
        labelPlacement="@Syncfusion.EJ2.Charts.LabelPlacement.BetweenTicks" labelRotation="-45">
    </e-chart3d-primaryxaxis>
    <e-chart3d-series-collection>
        <e-chart3d-series dataSource="ViewBag.dataSource" xName="month" yName="sales" name="China"
            type="@Syncfusion.EJ2.Charts.Chart3DSeriesType.Column"></e-chart3d-series>
    </e-chart3d-series-collection>
    <e-chart3d-tooltipsettings enable="true" format="${point.x} : ${point.y}" fill="#7bb4eb">
        <e-chart3dtooltipsettings-border width="2" color="grey"></e-chart3dtooltipsettings-border>
    </e-chart3d-tooltipsettings>
</ejs-chart3d>
public ActionResult Index()
{
    List<ChartData> chartData = new List<ChartData>
    {
        new ChartData { month= "Jan", sales= 35 },
        new ChartData { month= "Feb", sales= 28 },
        new ChartData { month= "Mar", sales= 34 },
        new ChartData { month= "Apr", sales= 32 },
        new ChartData { month= "May", sales= 40 },
        new ChartData { month= "Jun", sales= 32 },
        new ChartData { month= "Jul", sales= 35 },
        new ChartData { month= "Aug", sales= 55 },
        new ChartData { month= "Sep", sales= 38 },
        new ChartData { month= "Oct", sales= 30 },
        new ChartData { month= "Nov", sales= 25 },
        new ChartData { month= "Dec", sales= 32 }
    };
    ViewBag.dataSource = chartData;
    return View();
}
public class ChartData
{
    public string month;
    public double sales;
}

Tooltip in ASP.NET CORE 3D Chart Component

Default tooltip

Fixed tooltip

Format the tooltip

Tooltip template

Customize the appearance of tooltip