# Uno Toolkit Itemsrepeater Extensions

> Attached properties (`utu:ItemsRepeaterExtensions.SelectionMode`, `.SelectedItem`, `.SelectedItems`, `.SelectedIndex`, `.SelectedIndexes`) that add selection and incremental loading to `ItemsRepeater`.

- Skill: `unoplatform/uno-toolkit-itemsrepeater-extensions` (Agent Skill)
- Install (CLI): `npx skillmds@latest add unoplatform/uno-toolkit-itemsrepeater-extensions`
- Raw SKILL.md: https://api.skillmd.com/api/skills/unoplatform/uno-toolkit-itemsrepeater-extensions/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: unoplatform (https://skillmd.com/u/unoplatform)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/unoplatform/uno-toolkit-itemsrepeater-extensions

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# Uno Toolkit ItemsRepeater Extensions — Agent Skill

## Workflow

> **Docs lookup:** call `uno_platform_docs_search(...)` first, then `uno_platform_docs_fetch(sourcePath="…")` using the `sourcePath` field from a result (a relative `.md` path; add the result's `anchor` for a section). Never pass a URL, a `.html` link, or a hand-built path.

### Step 1: Fetch the ItemsRepeater Extensions Documentation

```
uno_platform_docs_search("Uno Toolkit ItemsRepeater extensions selection SelectedItem incremental loading")
```

Primary documentation:

```
uno_platform_docs_search("ItemsRepeaterExtensions SelectedItem SelectedItems SelectionMode incremental")
```

### Step 2: For Controls Reference

```
uno_platform_docs_fetch(sourcePath="external/uno.toolkit.ui/doc/controls-styles.md")
```

Look for ItemsRepeaterExtensions in the helpers section.

## Key Principles (Stable)

- `utu:ItemsRepeaterExtensions.SelectedItem` — single selected item (bindable)
- `utu:ItemsRepeaterExtensions.SelectedIndex` — single selection index (bindable)
- `utu:ItemsRepeaterExtensions.SelectedItems` — multiple selected items (bindable)
- `utu:ItemsRepeaterExtensions.SelectedIndexes` — multiple selection indexes (bindable)
- `utu:ItemsRepeaterExtensions.SelectionMode` — Single, Multiple, None
- Supports `ISupportIncrementalLoading` for automatic data fetching on scroll
- XAML namespace: `xmlns:utu="using:Uno.Toolkit.UI"`

## Related Skills

- [[uno-toolkit-selector-extensions]] — Selection on Selector-based controls
- [[uno-toolkit-command-extensions]] — Command on ItemsRepeater tap