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In WinUI 3 - What is the correct way to display validation error message text under each input field in XAML? #7388

Answered by ghost
RossCoeH asked this question in Q&A
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I recently saw this discussion and decided to build a quick sample with TextBox - it could definitely use support from WinUI, having an equivalent of INotifyDataErrorInfo (and maybe a new interface for controls that support input validation) would make this scenario a whole lot nicer. This solution is not fully polished, I might work on a nicer version of it eventually, but for now it's just a proof of concept with UWP/WinUI 2. Should be easy to port to WinUI 3, it's just a few attached properties and a custom style for the input fields:

InputValidation.zip

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@Laim
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Converted from issue

This discussion was converted from issue #7386 on July 18, 2022 14:56.