SankeyLinkClickEventArgs.Connection Property

Returns the clicked link and its associated nodes.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

public SankeyLinkConnectionInfo Connection { get; set; }

Property Value

Type	Description
SankeyLinkConnectionInfo	The clicked link and its associated nodes.

Remarks

The following code snippet handles the LinkClick event and displays information about the clicked link and associated nodes:

Razor

<DxSankey Data="@Data"
          Width="100%"
          Height="440px"
          LinkClick="@OnLinkClick"
          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 OnLinkClick(SankeyLinkClickEventArgs args) {
        var connection = args.Connection;
        Message = "The source node: " + connection.SourceNode + ". " +
                  "The target node: " + connection.TargetNode + ". " +
                  "The link weight: " + connection.Weight + ".";
    }
}

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;
    }
}