| name | uno-toolkit-command-extensions |
| description | Attached properties (`CommandExtensions.Command`, `CommandExtensions.CommandParameter`) that bind controls without a built-in `Command` to MVVM commands. |
| when_to_use | Use when a UI event (Enter in `TextBox`, item click in `ListView`, `ToggleSwitch` toggle, `NavigationViewItem` invocation, any `UIElement` tap) must invoke an MVVM command without code-behind event handlers. |
| metadata | {"author":"uno-platform","version":"2.5","category":"toolkit"} |
Uno Toolkit Command 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 CommandExtensions Documentation
uno_platform_docs_search("Uno Toolkit CommandExtensions command TextBox enter ToggleSwitch ListView tap")
Primary documentation pages:
- CommandExtensions (Chefs):
external/uno.chefs/doc/toolkit/CommandExtensions.md
- Command Extensions helper: search for
CommandExtensions in toolkit helpers
Fetch the Chefs page:
uno_platform_docs_fetch(sourcePath="external/uno.chefs/doc/toolkit/CommandExtensions.md")
Step 2: For Reference Documentation
uno_platform_docs_search("Uno Toolkit CommandExtensions attached property Command CommandParameter")
Critical Rules
- There is no
CommandTrigger attached property. utu:CommandExtensions.Command="{Binding ...}" alone is sufficient — the trigger event is determined automatically by the control type (Enter on TextBox/PasswordBox, item click on ListView, toggle on ToggleSwitch, invocation on NavigationView, tap on any UIElement). Do not invent a separate trigger property.
Command on ListView requires IsItemClickEnabled="True" to fire.
Key Principles (Stable)
utu:CommandExtensions.Command="{Binding MyCommand}" — attaches a command
utu:CommandExtensions.CommandParameter — optional parameter
- Supported controls: TextBox (enter key), PasswordBox, ToggleSwitch, ListView, NavigationView, ItemsRepeater, any UIElement (tap)
- XAML namespace:
xmlns:utu="using:Uno.Toolkit.UI"
Related Skills
- [[uno-toolkit-input-extensions]] — Input field focus flow
- [[uno-toolkit-itemsrepeater-extensions]] — ItemsRepeater selection