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V24.2

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DxSankey.Rendered Event

Fires after the Sankey component is rendered.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

#Declaration

C#
[Parameter]
public EventCallback Rendered { get; set; }

#Remarks

Handle the Rendered event to track the moment when Sankey rendering is finished and the component is completely loaded.

#Example

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

DxSankey - Export Data

<DxSankey Data="@Data"
          @ref=@Sankey
          Rendered="@SankeyRendered"
          Width="100%"
          Height="440px"
          SourceFieldName="Source"
          TargetFieldName="Target"
          WeightFieldName="Weight">
    <DxSankeyNodeSettings Width="8" Spacing="30" />
    <DxTitleSettings Text="Commodity Turnover" />
</DxSankey>

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

@code {
    DxSankey Sankey;
    bool buttonVisible;

    IEnumerable<SankeyDataPoint> Data = Enumerable.Empty<SankeyDataPoint>();
    protected override void OnInitialized() {
        Data = GenerateData();
    }

    async Task SankeyRendered() {
        await Task.Delay(2000);
        buttonVisible = true;
    }
    async Task ExportToPdf() {
        await Sankey.ExportToAsync("Custom file", DataExportFormat.Pdf);
    }
}
See Also