GaugeBase.ExportToAsync(String, DataExportFormat) Method

Exports gauge data to a file in the specified format.

Namespace: DevExpress.Blazor.Base

Assembly: DevExpress.Blazor.v25.1.dll

NuGet Package: DevExpress.Blazor

Declaration

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.

<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 };
    // ...
}