uno-navigation-data

name	uno-navigation-data
description	Pass and receive data during navigation in Uno Platform applications.
when_to_use	Use when passing data (objects, IDs, filters) from one page to another, receiving data in a ViewModel via constructor injection, returning results from a page back to the caller, using `NavigateDataAsync`, `NavigateBackWithResultAsync`, or setting up `DataViewMap` or `ResultDataViewMap` for data-based routes.
metadata	{"author":"uno-platform","version":"2.3","category":"navigation"}

Uno Navigation Data Passing — 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 Data Passing Documentation

uno_platform_docs_search("Uno Navigation data passing receive NavigateDataAsync constructor injection")

Primary documentation pages:

• Passing Navigation Data (Chefs): external/uno.chefs/doc/navigation/PassingNavigationData.md
• Pass Data During Navigation: external/uno.extensions/doc/Learn/Navigation/Walkthrough/DisplayItemDetails.md

Fetch the Chefs data passing page:

uno_platform_docs_fetch(sourcePath="external/uno.chefs/doc/navigation/PassingNavigationData.md")

Step 2: For Route Configuration with Data

Data-based navigation requires proper route registration:

uno_platform_docs_search("Uno Navigation DataViewMap ResultDataViewMap route data type")

Step 3: For Returning Results

If the user needs a round-trip (navigate, pick data, return):

The Chefs page covers NavigateBackWithResultAsync and ResultDataViewMap patterns.

Step 4: For XAML Data Passing

For passing data declaratively:

uno_platform_docs_search("Uno Navigation XAML Navigation.Data binding pass")

Key Principles (Stable)

• Data is received via constructor dependency injection in the target ViewModel
• DataViewMap associates a data type with a View/ViewModel for data-based navigation
• ResultDataViewMap additionally specifies a result type for round-trip navigation
• NavigateBackWithResultAsync(data) returns data to the calling page
• Routes must be configured in RegisterRoutes to support data types
• Navigation.Data attached property enables data passing in XAML

Related Skills

• [[uno-navigation-routes]] — Route registration with data types
• [[uno-navigation-code]] — Programmatic navigation methods
• [[uno-navigation-xaml]] — XAML data binding for navigation