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Gemeinsame View-Models mit XAML Technologien
The document discusses various XAML technologies such as WPF, UWP, Xamarin.Forms, and Avalonia UI, focusing on their portability and unique features. It emphasizes the importance of dependency injection for service management and the MVVM pattern for application architecture. Additionally, it provides links to resources and demos related to these technologies.
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Gemeinsame View-Models mit XAML Technologien
- 1. Gemeinsame View-Models mit XAMLTechnologien Christian Nagel https://csharp.christiannagel.com
- 2. Topics Client Technologies Dependency Injection& Hosting DI Container (3.0) View-Models
- 3. Christian Nagel • Training •Coaching • Consulting • Development • Microsoft MVP • www.cninnovation.com • csharp.christiannagel.com
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- 5. WPF • Started with.NET Framework 3.0 • Mature • Ported to .NET Core 3.0 • Use Analyze Project Portability with existing applications • Supports older versions of Windows • Modern controls (UWP) via XAML islands • Windows only
- 6. Demo WPF with .NETCore Analyze Project Portability
- 7. Universal Windows Platform • XAML similarto WPF but with small differences • Modern controls and layouts • Windows Runtime APIs • Native Compilation • Compiled Binding • Windows 10 only • WinUI • UWP is used to build Windows 10 user interfaces
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- 9. Xamarin.Forms • XAML isdifferent • Android • Java - .NET Interop • iOS • Native • UWP • limited (e.g. new Shell)
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- 11. Avalonia UI • Windows,Linux, OSX • Experimental for Android, iOS • Renderer to OpenGL, X11 • http://avaloniaui.net/ • https://github.com/AvaloniaUI
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- 13. Platform Uno • WebAssemblyor Xamarin Native Stack • XAML-Style UWP • https://platform.uno/ • https://github.com/unoplatform
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- 16. Dependency Injection Overview • HollywoodPrinciple • Don't call us, we call you! • Decoupling • Code becomes easier • Unit testing made possible
- 17. Dependency Injection & View-Models • EinfachereView-Models • Services unabhängig von View-Models • Services über DI injecten • Unabhängigkeit von Plattform-Features • Dependency Injection Container erleichtern Dependency Management
- 18. .NET Core 3 HostClass • WebHost class replaced by Host class • Services, configuration, and logging in one place • Used by Worker processes, Windows Services, Linux daemons • Can be used with client applications as well
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- 20. Shared Sources • UI Technologies •WPF • UWP • Xamarin • Uno Platform • Common Services in .NET Standard Libraries • Common View-Models in .NET Standard Libraries • Platform Specific Services in technology specific libraries/apps
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- 23. Views • XAML • WenigCode-Behind • User Controls • Styles in Resource Dictionaries
- 24. Binding • Binding mitListen und Elementen • Binding zu Properties & Commands • Wohin mit dem DataContext? • Pages / User Controls • Data Context wird an User Controls weitergereicht
- 25. Models • INotifyPropertyChanged • Benachrichtigungbei Änderungen
- 26. Commands • ICommand Interface •Commands to Delegates • DelegateCommand
- 27. View-Models • Basisklassen fürgemeinsame Features • Progress-Information • Error-Handling • Master/Detail • Keine UI Typen im View-Model • Properties und Commands für das View
- 28. Demo Views, Binding, View-Models,Services, Platform specific services
- 29. View-Models für Items • Itemsin Listen brauchen oft Commands • View-Models können in Listen verwendet werden
- 30. Communication zwischen View- Models/Views • LoseKopplung • View-Models unabhängig von anderen View- Models halten • Singleton/Scoped service mit gemeinsamen State • Event Aggregator / Messenger
- 31. Applikations- Architektur • .NET StandardLibrary • MVVM Pattern • Binding • Commands • Dependency Injection • Event Aggregation
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- 33. For action • Microsoft.Extensions.DependencyInjection •View-Models in .NET Standard Libraries • Create your base view-models • Use any XAML technology • https://csharp.christiannagel.com • https://github.com/cninnovation • https://github.com/ProfessionalCSharp
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