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V25.1
  • DxSankey.GetSvgMarkupAsync() Method

    Obtains the component’s SVG markup.

    Namespace: DevExpress.Blazor

    Assembly: DevExpress.Blazor.v25.1.dll

    NuGet Package: DevExpress.Blazor

    Declaration

    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.

    DxSankey - Get SVG 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