SankeyNodeClickEventArgs.Node Property

Returns the clicked node.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

public SankeyNodeInfo Node { get; set; }

Property Value

Type	Description
SankeyNodeInfo	The clicked node.

Remarks

The following code snippet handles the NodeClick event and displays information about the clicked node and associated links:

Razor

<DxSankey Data="@Data"
          Width="100%"
          Height="440px"
          NodeClick="@OnNodeClick"
          SourceFieldName="Source"
          TargetFieldName="Target"
          WeightFieldName="Weight">
    <DxSankeyNodeSettings Width="8" Spacing="30" />
    <DxSankeyLinkSettings ColorMode="SankeyLinkColorMode.Gradient" />
    <DxTitleSettings Text="Commodity Turnover" />
</DxSankey>

@Message

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

    string Message { get; set; }
    void OnNodeClick(SankeyNodeClickEventArgs args) {
        var node = args.Node;
        Message = "The clicked node: " + node.Label + ". " +
          "Incoming links: " + node.LinksIn.Length + ". " +
          "Outgoing links: " + node.LinksOut.Length + ".";
    }
}

DataSource

public List<SankeyDataPoint> GenerateData() {
    return new List<SankeyDataPoint>() {
        new SankeyDataPoint("Spain", "United States of America", 2),
        new SankeyDataPoint("Germany", "United States of America", 8),
        new SankeyDataPoint("France", "United States of America", 4),
        new SankeyDataPoint("Germany", "Great Britain", 2),
        new SankeyDataPoint("France", "Great Britain", 4),
        new SankeyDataPoint("United States of America", "Australia", 6),
        new SankeyDataPoint("United States of America", "New Zealand", 5),
        new SankeyDataPoint("United States of America", "Japan", 3),
        new SankeyDataPoint("Great Britain", "New Zealand", 4),
        new SankeyDataPoint("Great Britain", "Japan", 1),
    };
}
public class SankeyDataPoint {
    public string Source { get; set; }
    public string Target { get; set; }
    public int Weight { get; set; }
    public SankeyDataPoint(string source, string target, int weight) {
        Source = source;
        Target = target;
        Weight = weight;
    }
}