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V25.1
  • HeatmapControl.ExportToImage(Stream, ImageExportOptions) Method

    Exports the Heatmap Control as an image to a stream. The export settings passed as a parameter are used.

    Namespace: DevExpress.Xpf.Charts.Heatmap

    Assembly: DevExpress.Xpf.Charts.v25.1.dll

    NuGet Package: DevExpress.Wpf.Charts

    Declaration

    public void ExportToImage(
        Stream stream,
        ImageExportOptions options
    )

    Parameters

    Name Type Description
    stream Stream

    The stream for output data.

    options ImageExportOptions

    Export settings.

    Remarks

    The following example uses the ExportToImage method to export the Heatmap Control to a stream with the specified export settings:

    <dxh:HeatmapControl x:Name="heatmapControl">
        <dxh:HeatmapControl.PrintOptions>
            <dxh:HeatmapPrintOptions SizeMode="ProportionalZoom" />
        </dxh:HeatmapControl.PrintOptions>
    </dxh:HeatmapControl>
    <dx:SimpleButton Click="SimpleButton_Click"/>
    
    using DevExpress.XtraPrinting;
    using System.Drawing.Imaging;
    using System.IO;
    
        private void SimpleButton_Click(object sender, RoutedEventArgs e) {
            using (FileStream outputStream = File.Open("D:/Temp/ExportedImage.png", FileMode.OpenOrCreate)) {
                ImageExportOptions exportOptions = new ImageExportOptions();
                exportOptions.Format = ImageFormat.Png;
                heatmapControl.ExportToImage(outputStream, exportOptions);
            }
        }
    
    See Also