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Wait to update SearchText until we've actually updated SearchText (#39093)

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Closes #38829

If we always UpdateProperty here, then there's a possible
race condition, where we raise the PropertyChanged(SearchText)
before the subclass actually retrieves the new SearchText from the
model. In that race situation, if the UI thread handles the
PropertyChanged before ListViewModel fetches the SearchText, it'll
think that the old search text is the _new_ value.
This commit is contained in:
Mike Griese
2025-04-27 15:29:15 -05:00
committed by GitHub
parent 49e5bbb5f0
commit ad974bd679
1 changed files with 14 additions and 1 deletions
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15
src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/PageViewModel.cs
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@@ -182,6 +182,7 @@ public partial class PageViewModel : ExtensionObjectViewModel, IPageContext
return; // throw?
}
var updateProperty = true;
switch (propertyName)
{
case nameof(Name):
@@ -198,9 +199,21 @@ public partial class PageViewModel : ExtensionObjectViewModel, IPageContext
case nameof(Icon):
this.Icon = new(model.Icon);
break;
default:
updateProperty = false;
break;
}
UpdateProperty(propertyName);
// GH #38829: If we always UpdateProperty here, then there's a possible
// race condition, where we raise the PropertyChanged(SearchText)
// before the subclass actually retrieves the new SearchText from the
// model. In that race situation, if the UI thread handles the
// PropertyChanged before ListViewModel fetches the SearchText, it'll
// think that the old search text is the _new_ value.
if (updateProperty)
{
UpdateProperty(propertyName);
}
}
public new void ShowException(Exception ex, string? extensionHint = null)