uno-toolkit-itemsrepeater-extensions
Attached properties (`utu:ItemsRepeaterExtensions.SelectionMode`, `.SelectedItem`, `.SelectedItems`, `.SelectedIndex`, `.SelectedIndexes`) that add selection and incremental loading to `ItemsRepeater`.
来源信息
- 仓库
- unoplatform/studio
- 最近来源活动
- 2026年6月9日 19:39
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- uno-toolkit-itemsrepeater-extensions
- description
- Attached properties (`utu:ItemsRepeaterExtensions.SelectionMode`, `.SelectedItem`, `.SelectedItems`, `.SelectedIndex`, `.SelectedIndexes`) that add selection and incremental loading to `ItemsRepeater`.
- when_to_use
- Use when `ItemsRepeater` needs selection or fetch-on-scroll — `ItemsRepeater` itself has no built-in `SelectionMode` / `SelectedItem`, so the Toolkit's attached properties are the canonical way to add them. Pairs with `ISupportIncrementalLoading` on the data source for automatic page loading.
- metadata
- {"author":"uno-platform","version":"2.5","category":"toolkit"}
# 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
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