Graph Chart
Visualize networks and relationships between entities. Nodes represent entities and links show connections. Supports force-directed and circular layouts.
Installation
dotnet add package Lumeo.Charts
One-time app setup (AddLumeo(), CSS & JS) is covered in the
installation guide.
Usage
@using Lumeo <GraphChart />
Shape-aware skeleton with reserved space for legend and axes — no layout shift when real data arrives.
API Reference
GraphChart
| Property | Type | Default | Description |
|---|---|---|---|
| Nodes | List<GraphNode> | [] | Nodes with Name, Category, and optional SymbolSize. |
| Links | List<GraphLink> | [] | Connections with Source and Target. |
| Categories | List<GraphCategory> | [] | Category groups for coloring nodes. |
| Layout | string | "force" | Layout algorithm: "force", "circular", or "none". |
| Roam | bool | true | Enables pan and zoom. |
| IsLoading | bool | false | When true, renders a shape-matched loading skeleton in place of the chart. Bind to your async fetch state. |
| ShowLoadingSkeleton | bool | true | Set to false to opt out of the skeleton (chart area stays empty while IsLoading is true). |
| SkeletonKind | ChartSkeletonKind | (chart default) | Override the skeleton silhouette (Bars, Line, Area, Pie, Scatter, Grid, Generic). |
| SkeletonStyle | ChartSkeletonStyle | Phantom | Phantom renders the real chart with placeholder data and morphs to real data via ECharts animation. Silhouette falls back to the legacy SVG skeleton overlay. |
| ShowLoadingLabel | bool | true | Shows a small "Loading…" pill in the top-right corner whenever IsLoading is true. Layered on top of any SkeletonStyle. Set to false for bare visuals. (rc.18) |
| LoadingText | string? | "Loading…" | Label rendered next to the spinner inside the loading pill. Set to empty to show the spinner alone. (rc.18) |
| ShowLegend | bool | true | Shows or hides the chart legend. |
| ShowTooltip | bool | true | Enables the hover tooltip showing node and link details. |
| Colors | List<string>? | null | Custom color palette for graph node categories. |
| Width | string | "100%" | Chart container width as a CSS length. |
| Height | string | "350px" | Chart container height as a CSS length. |
| Theme | string? | null | ECharts theme name applied to this chart instance. |
| PhantomCycleMs | int | 1400 | Phantom-mode refresh interval in milliseconds. Lower = faster data cycling while loading. |
| ShowDataLabels | bool | false | When true, displays text labels on graph nodes. |
| LabelPosition | string | "right" | Position of node labels relative to each node. |
| LabelFormat | string? | null | Optional ECharts label formatter string for node labels. |
| DataZoom | bool | false | Enables zoom slider controls for dense graphs. |
| Toolbox | bool | false | Shows the ECharts toolbox with export and zoom controls. |
| ColorPalette | List<string>? | null | Alternate full color palette applied to the chart. |
| AnimationDuration | int? | null | Animation duration in milliseconds when data changes. |
| AnimationEasing | string? | null | ECharts easing function name for animation curves. |