ReddRadar
Agent skill
avalonia-layout-and-virtualization
Design or optimize Avalonia panels, measure and arrange behavior, custom layout controls, item virtualization, recycling, and large-data presentation. Use for `MeasureOverride` or `ArrangeOverride` work, invalidation bugs, virtualized item surfaces, or custom panel authoring.
Install this agent skill to your Project
npx add-skill https://github.com/wieslawsoltes/development-plugin-for-avalonia/tree/main/skills/avalonia-layout-and-virtualization
SKILL.md
Avalonia Layout and Virtualization
Start with:
../../references/30-layout-measure-arrange-and-custom-layout-controls.md../../references/21-custom-layout-authoring.md../../references/20-itemscontrol-virtualization-and-recycling.md
Load these when scrolling or templates are involved:
../../references/57-scrollviewer-offset-anchoring-and-snap-points.md../../references/38-data-templates-and-idatatemplate-selector-patterns.md
Workflow
- Define layout contract first: desired size, final arrangement, invalidation rules.
- Use built-in panels and recycling paths before creating a custom panel.
- Verify how virtualization, scrolling, and templates interact on large data sets.
- Measure before and after changes when performance is the reason for the work.
Rules
- Use
InvalidateMeasureandInvalidateArrangedeliberately. - Avoid per-item heavy logic inside measuring and arranging hot paths.
- Keep virtualization-friendly templates light and deterministic.
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