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Extend KeyDownTriggerBehavior with Modifiers and ability to handle already handled events#853

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Irina-Konovalova wants to merge 1 commit into
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Ecierge:key-down-trigger-behavior-improvements
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Extend KeyDownTriggerBehavior with Modifiers and ability to handle already handled events#853
Irina-Konovalova wants to merge 1 commit into
CommunityToolkit:mainfrom
Ecierge:key-down-trigger-behavior-improvements

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@Irina-Konovalova
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Fixes

This PR extends KeyDownTriggerBehavior.

PR Type

What kind of change does this PR introduce?

  • Other... Please describe: Extend KeyDownTriggerBehavior with Modifiers and ability to handle already handled events.

What is the current behavior?

KeyDownTriggerBehavior does not support modifier keys or PreviewKeyDown, which limits its use in keyboard navigation scenarios.

What is the new behavior?

This PR extends KeyDownTriggerBehavior by adding support for modifier keys, PreviewKeyDown, and handled events. It also updates the XML documentation.

PR Checklist

Please check if your PR fulfills the following requirements:

  • Created a feature/dev branch in your fork (vs. submitting directly from a commit on main)
  • Based off latest main branch of toolkit
  • Tested code with current supported SDKs
  • New component
    • Documentation has been added
    • Sample in sample app has been added
    • Analyzers are passing for documentation and samples
    • Icon has been created (if new sample) following the Thumbnail Style Guide and templates
  • Tests for the changes have been added (if applicable)
  • Header has been added to all new source files
  • Contains NO breaking changes

Other information

@Irina-Konovalova Irina-Konovalova force-pushed the key-down-trigger-behavior-improvements branch from 6b836a3 to 8b01b15 Compare May 14, 2026 15:15
@Irina-Konovalova
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@dotnet-policy-service agree company="ECIERGE SOFTWARE DEV INC"

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