Allow triple left click on a TextBox to select all text - #4081
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corvinsz
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Aug 13, 2026
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I few things I noticed:
- We should type check against
TextBoxBaseso this behavior also works for theRichTextBox - Maybe an example dedicated to this attached property with a small description would be helpful, especially because this behavior is not something consumers can "just see". Please don't forget the MD3 demo app 😄
- In my opinion the test you added should also test the negative (
materialDesign:TextFieldAssist.SelectAllOnTripleClick="False") behavior to prevent any regressions.
Co-authored-by: Corvin <43533385+corvinsz@users.noreply.github.com>
Co-authored-by: Corvin <43533385+corvinsz@users.noreply.github.com>
Update Demos with dedicated samples
corvinsz
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Aug 17, 2026
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LGTM!
The tests could be made data-driven, but I’m totally fine with the current approach as well.
Keboo
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Makes triple-click-to-select-all the default behavior for TextBoxes using Material Design styles, aligning with common user expectations for text input fields. Refactors TextFieldAssist Get/Set methods to use TextBoxBase for improved type specificity and encapsulates the event handler. Updates demos and UI tests to reflect this new default and accurately demonstrate both enabled and disabled states.
Keboo
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Aug 21, 2026
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This is great, thank you! For some reason I thought this was already the default. I tweaked it slightly so that it will be on by default for anyone using the library but let people opt out with the AP.
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Triple clicking in a textbox to select all text is a common action on Windows applications