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DxSankey.GetSvgMarkupAsync() Method

Obtains the component’s SVG markup.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

#Declaration

C#
public ValueTask<string> GetSvgMarkupAsync()

#Returns

Type Description
ValueTask<String>

A structure that stores an awaitable result of an asynchronous operation. The awaitable result is an SVG markup string.

#Remarks

The following code snippet obtains the Sankey’s SVG markup and passes it as a parameter to a custom CreateSvgMarkup function. This function creates a new SVG document that contains the Sankey markup.

@if (IsNewSvgGenerated) {
    @((MarkupString)NewSvgMarkup
        )
} else {
    <DxButton Click=@Svg Text="Export SVG markup" />

    <DxSankey Data="@Data"
              @ref="@Sankey"
              Width="620px"
              Height="400px"
              SourceFieldName="Source"
              TargetFieldName="Target"
              WeightFieldName="Weight">
        <DxSankeyNodeSettings Width="8" Spacing="30" />
        <DxSankeyLinkSettings ColorMode="SankeyLinkColorMode.Gradient" />
        <DxTitleSettings Text="Commodity Turnover" />
    </DxSankey>
}

@code {
    string NewSvgMarkup { get; set; }
    bool IsNewSvgGenerated { get; set; }

    DxSankey Sankey;
    public async Task Svg() {
        var sankeyMarkup = await Sankey.GetSvgMarkupAsync();
        NewSvgMarkup = CreateSvgMarkup(sankeyMarkup);
        IsNewSvgGenerated = true;
    }
    string CreateSvgMarkup(string sankeyMarkup) {
        var templateSvg =
            "<svg width=\"1020px\" height=\"420px\">" +
                "<path d=\"M 13 407 L 128 407 L 232 39 L 13 39\" fill=\"#6D39C3\"></path>" +
                "<path d=\"M 46 381 L 161 381 L 265 13 L 46 13\" opacity=\"0.5\" fill=\"#6D39C3\"></path>" +
                "<text transform=\"translate(30,89)\" style=\"fill: rgb(255, 255, 255);font-family: &quot;Segoe UI&quot;, &quot;Helvetica Neue&quot;, &quot;Trebuchet MS&quot;, Verdana, sans-serif;font-size: 36px;font-weight: bold;\">" +
                    "<tspan x=\"0\" y=\"0\">Export </tspan>" +
                    "<tspan x=\"0\" y=\"38\">SVG</tspan>" +
                    "<tspan x=\"0\" y=\"76\">Content</tspan>" +
                "</text>" +

                "<path opacity=\"0.8\" d=\"M 0 0 L 1020 0 L 1020 420 L 0 420 L 0 0\" stroke=\"#999999\" stroke-width=\"1\" stroke-linecap=\"butt\" fill=\"none\" stroke-linejoin=\"miter\"></path>" +
            "</svg>";

        return "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" version=\"1.1\" width=\"1020px\" height=\"420px\">" +
            templateSvg +
            "<g transform=\"translate(305,12)\">" + sankeyMarkup + "</g>" +
        "</svg>";
    }

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