Example of Overview in Blazor Diagram Component
This sample visualizes organizational structure and provides an overview panel to simplify navigation of large hierarchical diagrams. The overview presents a live, scaled preview of the diagram and supports pan and zoom operations to quickly reposition the main canvas.
Render SfDiagramOverviewComponent- Display an overall diagram preview
- Navigate to specific diagram positions by clicking or dragging the preview
- Pan and zoom within large diagrams
- Map the overview to a diagram using the
SourceIDproperty
The overview shows the diagram extent and allows clicking or dragging within the preview to navigate the main diagram. It is useful for providing context when users work with broad or deeply nested hierarchies.
Configure size, scale, and behavior so the overview remains readable without obscuring screen real estate. Bind the overview to the diagram instance and ensure it updates when nodes, connectors, or layout change.
Accessibility and interaction notes: expose clear ARIA labels for the overview container, preserve keyboard focus order, and verify that pan/zoom gestures are available to both mouse and touch users.
Use the overview for organizational charts and other large diagrams to improve orientation and speed navigation. Test the overview at representative canvas sizes and with varied zoom levels to ensure the preview scale and hit areas remain usable. When binding via SourceID, ensure the referenced diagram instance is present at initialization to avoid synchronization issues.
Provide ARIA attributes and keyboard shortcuts to maintain accessibility for assistive technology users.
Looking for the full Blazor Diagram component overview, features, pricing, and documentation? Visit the Blazor Diagram page.