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V24.2

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GaugeBase.ExportToAsync(String, DataExportFormat) Method

Exports gauge data to a file in the specified format.

Namespace: DevExpress.Blazor.Base

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

#Declaration

C#
public ValueTask ExportToAsync(
    string fileName,
    DataExportFormat format = DataExportFormat.Png
)

#Parameters

Name Type Description
fileName String

The name of the exported file.

#Optional Parameters

Name Type Default Description
format DataExportFormat Png

The format of the exported file.

#Returns

Type Description
ValueTask

A structure that stores an awaitable result of an asynchronous operation.

#Remarks

Call the ExportToAsync() method to export gauge data to a file in the specified format: PNG, PDF, JPEG, or SVG.

The following code snippet displays a custom Export to PDF button that exports bar gauge data to a PDF file. The button appears after the component is completely loaded. For demo purposes, the example imitates a time-consuming operation.

Bar Gauge - Export Data

Razor
<DxBarGauge Width="50%"
            Height="50%"
            StartValue="-5"
            EndValue="5"
            BaseValue="0"
            @ref=@BarGauge
            Values="@Values"
            Rendered="@BarGaugeRendered">
    @* ... *@
</DxBarGauge>

<DxButton Text="Export to PDF" Visible="@buttonVisible" Click="@ExportToPdf" />

@code {
    bool buttonVisible;
    DxBarGauge BarGauge;

    async Task ExportToPdf () {
        await BarGauge.ExportToAsync("Custom file", DataExportFormat.Pdf);
    }

    async Task BarGaugeRendered() {
        await Task.Delay(2000);
        buttonVisible = true;
    }
    double[] Values = new double[] { -2.13, 1.48, -3.09, 4.52, 4.9, 3.9 };
    // ...
}
See Also