GanttChart Props
Data
| Prop | Type | Default | Description |
|---|---|---|---|
tasks | GanttTask[] | required | Task rows |
onTasksChange | (tasks) => void | — | Called after drag/resize/progress |
Layout
| Prop | Type | Default |
|---|---|---|
height | number | 500 |
width | string | number | '100%' |
rowHeight | number | 36 |
showTaskList | boolean | true |
showDateColumns | boolean | true |
defaultLeftWidth | number | 220 |
defaultMiddleWidth | number | 180 |
minPanelWidth | number | 80 |
columns | GanttColumn[] | name column |
middleColumns | GanttColumn[] | start/end |
Timeline
| Prop | Type | Default |
|---|---|---|
zoomLevel | ViewScaleId | 'week' |
availableZoomLevels | ViewScaleId[] | preset list |
columnWidth | number | preset |
minDate | Date | string | auto |
maxDate | Date | string | auto |
timezone | string | browser local |
Interaction
| Prop | Type | Default |
|---|---|---|
enableDrag | boolean | true |
enableResize | boolean | true |
enableProgressDrag | boolean | true |
enableDependencyCreate | boolean | false (connector handles to draw links; per-task override) |
snapToGrid | boolean | true |
selectedTaskIds | string[] | — |
selectedDependencyIds | string[] | — (controlled link selection; makes links interactive) |
formatDependencyLag | (lag, dependency) => string | +2d / -1d |
showTooltip | boolean | false |
renderTaskTooltip | fn | — |
showBaseline | boolean | true |
Overlays
| Prop | Type |
|---|---|
holidays | HolidayMarking |
blockDates | BlockDateRange[] |
eventMarkers | EventMarker[] |
draggableMarkers | DraggableMarker[] |
draggableMarkerSnapPoints | DraggableMarkerSnapPoint[] |
customRows | CustomRowDefinition[] |
Theme
| Prop | Type | Default |
|---|---|---|
theme | 'light' | 'dark' | 'auto' | 'light' |
Performance
| Prop | Type | Default |
|---|---|---|
columnScrollBufferPercent | number | 10 |
Events
See Events & Hooks for onTaskClick, onGanttClick, onGanttContextMenu, onGanttHover, drag/resize lifecycle, onZoomChange, onScroll, onSidebarLayoutChange, onSelectionChange, the onDependency* callbacks, and custom row callbacks.