Issue with the BindTapGesture() method in v4.2.0 on .NET 9 RC2, whereas v4.1.0 works fine

[egvijayanand]

There is an issue with the BindTapGesture() method in v4.2.0 on .NET 9 RC2, whereas v4.1.0 works fine.

Since it's a preview version, I am not logging an issue but rather making you aware of this @brminnick

Error message:

Method 'ApplyToResolvedSource' in type 'CommunityToolkit.Maui.Markup.TypedBinding`2' from assembly 'CommunityToolkit.Maui.Markup, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' does not have an implementation.

[TheCodeTraveler]

Got it. Yup - bindings are totally different under the hood in .NET 9

[egvijayanand]

Most of the other things work fine, but only this method is cribbing.

[egvijayanand]

Adding context to the issue, am using TypedBinding.

[egvijayanand]

@brminnick Since classic Gesture methods have been removed in v5.0,

What is the support plan for RelativeBindingSource?

I have templates defined in multiple places that rely solely on RelativeBindingSource for gestures.

I tried upgrading to Markup Toolkit v5.0 and immediately encountered this issue.

Do you have any samples that handle it differently?

[jfversluis]

Building now! If you could please add some release notes: https://github.com/CommunityToolkit/Maui.Markup/releases/tag/5.1.0

[TheCodeTraveler]

Thanks Gerald!! I'm on it 🙌

[egvijayanand]

Thanks for the quick turnaround.

Since the type name is now updated to StringGesturesExtensions instead of GesturesExtensions, a reference error may occur. Please mention it in the changelog.

[egvijayanand]

@brminnick Thanks for updating the changelog.

But needs a quick correction: the sample code mentioned needs an update, as it is missing parentheses and has a parameter name mismatch.

Here is the modified version:

StringGesturesExtensions.BindTapGesture(myLabel, nameof(TrendsViewModel.TappedCommand), commandSource: new RelativeBindingSource(RelativeBindingSourceMode.FindAncestorBindingContext, typeof(TrendsViewModel)));

[TheCodeTraveler]

Thanks again Vijay! Done ✅