WPF MVVM CollectionView Manager

About

This skill provides a standardized implementation pattern for handling WPF filtering, sorting, and grouping through a dedicated Service Layer. By encapsulating CollectionViewSource within services and exposing only BCL-compatible IEnumerable types to ViewModels, it ensures that your business logic remains completely independent of WPF-specific assemblies like WindowsBase or PresentationFramework. This approach improves testability, promotes code reusability across different views, and facilitates cleaner dependency injection in complex .NET desktop applications.

Key Features

• Service-based encapsulation of filtering, sorting, and grouping logic
• Dynamic view creation using the Factory pattern for multiple filtered views
• Strict MVVM separation by removing WPF assembly references from ViewModels
• Automatic synchronization between source collections and UI views
• Standardized assembly reference rules for clean architecture
• 6 GitHub stars

Use Cases

• Decoupling WPF applications to enable framework-independent unit testing
• Filtering a single data source with different criteria across multiple WPF views
• Implementing complex sorting and grouping logic without bloating the ViewModel