Do I need a special namespace to use enums in XAML?

Yes, you must declare a XAML namespace (xmlns) that points to the C# namespace where your Enum is defined, and include the assembly name if the enum resides in a different project.

Why does WPF throw a type mismatch error when passing an enum as a string?

When you write a string directly in XAML for a CommandParameter, WPF treats it as a System.String. If your ViewModel command expects an Enum type, no automatic conversion occurs, leading to a System.ArgumentException.

Can I use x:Static with ConverterParameters?

Yes. Using x:Static for ConverterParameters is highly recommended when working with Enums to ensure the converter receives the correct type for comparisons, such as in an EnumToBoolConverter.

How does x:Static help with Enum binding in WPF?

The x:Static markup extension allows you to reference a specific static member or constant directly. This ensures the value is passed as the actual Enum type rather than a string representation, maintaining type safety.

WPF Enum Command Parameter Binding

Name: WPF Enum Command Parameter Binding
Author: christian289

bychristian289

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Developer Tools

Facilitates type-safe binding of enum values to WPF CommandParameters using the x:Static markup extension to prevent runtime type mismatch errors.

About

This skill assists developers in implementing type-safe CommandParameter bindings in WPF applications by utilizing the x:Static markup extension for enum types. It addresses common runtime errors caused by automatic string conversion in XAML, providing standardized patterns for MVVM-based tool selection and UI state management. By using this skill, developers can ensure their XAML code correctly passes strongly-typed enum values to ViewModel commands, while also implementing supporting patterns like EnumToBoolConverter for synchronized UI states.

Key Features

Prevention of System.ArgumentException type mismatch errors
Implementation of x:Static markup extensions in XAML
Integration with MVVM and CommunityToolkit.Mvvm patterns
Type-safe enum binding for WPF CommandParameters
6 GitHub stars
EnumToBoolConverter logic for UI state synchronization

Use Cases

Passing strongly-typed enum values to RelayCommands in ViewModels
Managing ToggleButton states based on current enum selection in XAML
Implementing tool selection buttons (e.g., Pan, Zoom) in a WPF viewer

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add christian289/dotnet-with-claudecode binding-enum-command-parameters

For use in Claude.ai and ChatGPT

Download Skill

GitHub