# Localization

> Implement localization for the .NET 8 WPF widget host app using resource files, culture switching, and RTL considerations. Use when adding RESX resources, binding localized strings, or supporting multiple cultures.

- Skill: `majiayu000/localization` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/localization`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/localization/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/localization

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# Localization

## Overview

Deliver localized UI text and culture-aware formatting with runtime culture switching.

## Core areas

- RESX resources and resource dictionaries
- Culture switching at runtime
- RTL layout considerations

## Definition of done (DoD)

- No hardcoded user-visible strings in XAML or code
- All strings in RESX files with stable keys
- Dates/numbers use culture-aware formatting
- Culture switching works without app restart
- UI tested in at least one RTL language if RTL support is claimed

## Workflow

1. Define base resources and culture-specific RESX files.
2. Bind localized strings in XAML or view models.
3. Implement runtime culture switching in the shell.
4. Validate RTL layouts for languages that require it.

## Guidance

- Keep resource keys stable and descriptive.
- Use culture-aware formatting for dates and numbers.
- Avoid hard-coded UI strings.

## References

- `references/resources.md` for RESX patterns.
- `references/culture-switching.md` for runtime switch guidance.
- `references/rtl.md` for RTL layout considerations.