Bug 52464 - SearchCommand with CanExecute = false disables input on SearchBar
Summary: SearchCommand with CanExecute = false disables input on SearchBar
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 2.3.3
Hardware: PC Windows
: Normal normal
Target Milestone: ---
Assignee: Paul DiPietro [MSFT]
Depends on:
Reported: 2017-02-13 06:33 UTC by Kent
Modified: 2017-06-21 13:46 UTC (History)
4 users (show)

Tags: canexecute ui command ac
Is this bug a regression?: ---
Last known good build:

Repro (296.98 KB, application/x-zip-compressed)
2017-02-13 06:33 UTC, Kent

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Description Kent 2017-02-13 06:33:10 UTC
Created attachment 19796 [details]

Per the attached repro, a SearchCommand that returns false for CanExecute disables the text input on the search bar. This means that if you want a command that can only execute when text is entered, the bar disables when there is no text, hence preventing the user from actually entering text. I believe the SearchBar should simply refuse to execute the command when it is unavailable, not change prevent text entry.
Comment 1 Paul DiPietro [MSFT] 2017-02-24 19:03:48 UTC
This is something that will need to be discussed as there is a similar report (#51147) which appears to expect the opposite behavior and that the UI element should be disabled when CanExecute is false. For things such as this we should probably hold some level of consistency for what the user can expect and document it accordingly.
Comment 2 Kent 2017-02-24 22:39:42 UTC
@Paul I'm not sure I agree #51147 is a duplicate. It argues the "button" should be disabled, whereas I'm arguing the "textbox" should not be. Limitations of the native platform may mean they are one and the same, but the visual distinction remains and I suspect is the underlying cause for the differing expectations.