ChartSeriesPointImageModel.Height Property

Specifies the image height.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v21.1.dll

Declaration

[DefaultValue(30)]
public int Height { get; set; }

Property Value

Type Default Description
Int32

30

The image height.

Remarks

A Chart point’s image height is specified by the Height property. You can override this value for individual points. For this purpose, handle the CustomizeSeriesPoint event and use the PointAppearance.Image.Height property to set the new image height.

The following example illustrates how to:

  • use the DxChartSeriesPointImage component to specify the image size for all points;
  • handle the CustomizeSeriesPoint event and use the PointAppearance.Image.Height and PointAppearance.Image.Width properties to change the image size for points whose values are greater than 75.
<DxChart Data="@WeatherForecasts" CustomizeSeriesPoint="@PreparePointImage">
    <DxChartLineSeries AggregationMethod="@(i => (int)i.Average())"
                       ValueField="@((WeatherForecast i) => i.TemperatureF)"
                       ArgumentField="@(i => i.Date.Date)"
                       Name="Temperature, F">
        <DxChartSeriesPoint>
            <DxChartSeriesPointImage Width="25" Height="25" />
        </DxChartSeriesPoint>
    </DxChartLineSeries>
    <DxChartLegend Position="RelativePosition.Outside" />
</DxChart>

@code {q
    WeatherForecast[] WeatherForecasts;
    ...
    protected void PreparePointImage(ChartSeriesPointCustomizationSettings pointSettings) {
        IEnumerable<WeatherForecast> dataItems = pointSettings.Point.DataItems.Cast<WeatherForecast>();
        var weatherType = dataItems.GroupBy(x => x.CloudCover).OrderByDescending(x => x.Count()).First().Key;
        pointSettings.PointAppearance.Image.Url = $"_content/BlazorDemo/images/{weatherType}.png";

        double value = (double)pointSettings.Point.Value;
        if (value > 75) {
            pointSettings.PointAppearance.Image.Height = 50;
            pointSettings.PointAppearance.Image.Width = 50;
        }
    }
}

Chart Point Image Height

Run Demo: Charts - Series Point Image

See Also