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Customizes WPF control appearance using ControlTemplate with TemplateBinding and ContentPresenter. Use when completely changing control visuals, implementing state-based feedback, or TemplatedParent binding.
Integrates multimedia content in WPF including MediaElement video/audio playback, Image control display, and SoundPlayerAction effects. Use when building media players, galleries, or multimedia UIs.
Manages WPF Application lifecycle including Startup, Exit, SessionEnding events and single instance detection. Use when handling app initialization, shutdown, or preventing multiple instances.
Implements MVVM pattern using CommunityToolkit.Mvvm with ObservableProperty attributes. Use when building ViewModels with source generators or implementing commands in WPF/AvaloniaUI.
Implements WPF UI virtualization for large data sets using VirtualizingStackPanel. Use when displaying 1000+ items in ItemsControl, ListView, or DataGrid to prevent memory and performance issues.
Implements high-performance streaming using System.IO.Pipelines in .NET. Use when building network protocols, parsing binary data, or processing large streams efficiently.
Guides decision-making for WPF control authoring including UserControl vs Control vs FrameworkElement selection. Use when creating new controls or evaluating Style/Template/Trigger alternatives.
This skill should be used when the user explicitly wants authoritative domain expertise applied to their task - seeking guidance from renowned practitioners, specialists, or thought leaders rather than a generi...
Formats WPF XAML and C# code using XamlStyler and dotnet format. Generates Settings.XamlStyler and .editorconfig files automatically. Use when code formatting or style cleanup is needed.
Explains WPF Dispatcher priority system and threading patterns. Use when implementing background operations, maintaining UI responsiveness, or understanding task scheduling order.
Manages WPF Style definitions and ResourceDictionary patterns including BasedOn inheritance and resource merging. Use when building theme systems, organizing resources, or choosing between StaticResource and Dy...
Defines WPF DependencyProperty with Register, PropertyMetadata, callbacks, and validation. Use when creating custom controls, attached properties, or properties that support data binding and styling.
Manages literal strings by pre-defining them as const string in C#. Use when organizing string constants, log messages, exception messages, or UI texts across the codebase.
Implements WPF Adorner decoration layers with AdornerLayer, AdornerDecorator, and custom Adorner patterns. Use when building drag handles, validation indicators, watermarks, selection visuals, or resize grips.
Resolves text font inheritance issues when using Segoe Fluent Icons in WPF CustomControl. Use when TextBlocks inherit icon fonts unexpectedly within ControlTemplate.
Fixes RadialGradientBrush compatibility issues in AvaloniaUI due to Issue
Explains WPF content model hierarchy including ContentControl, ItemsControl, and Headered variants. Use when selecting base classes for custom controls or understanding content/items properties.
WPF CustomControl generation wizard. Specify control name and base class to auto-generate C# class and XAML style.
Configures Dependency Injection using Microsoft.Extensions.DependencyInjection and GenericHost. Use when setting up DI container, registering services, or implementing IoC patterns in .NET projects.
Tracks product completion progress across domains, features, subtasks, and quality gates. Supports hierarchical product structure.
Implements XAML behaviors and triggers using Microsoft.Xaml.Behaviors.Wpf. Use when adding interactivity to XAML without code-behind, implementing EventToCommand patterns, or creating reusable behaviors.
Implements advanced WPF data binding patterns including MultiBinding, PriorityBinding, and complex converters. Use when combining multiple values, fallback values, or implementing complex binding scenarios.
Analyzes product specifications for completeness, identifies gaps, and guides refinement
Implements WPF data validation using ValidationRule, IDataErrorInfo, and INotifyDataErrorInfo. Use when building forms, validating user input, or displaying validation errors in UI.
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