ComboBox PointerWheelChanged not firing

[WoistdasNiveau]

Describe the bug

When using the Combobox and using the PointerWheelChanged event, is does not trigger when one tries to scroll.

To Reproduce

Create a Combobox, create a method to listen for the PointerWheelChanged event

Expected behavior

Should fire the same way as it does for the Datagrid to be able to load Usernames to select, for example dynamically.

Avalonia version

11.1.3

OS

Windows

Additional context

I wanted to use the Combobox to select a user responsible for a task and as i did not want to load all users at once i wanted to implement infinite scroll via the PointerWheelChanged event.

[stevemonaco]

Have you tried a tunneling event? Controls themselves will typically have the first bite of a bubbling event and potentially handle it. If you're specifying the event handler in XAML, it's always a bubbling event. You need to manually AddHandler to create tunneling events.

[WoistdasNiveau]

Can you eloborate please an where i have to AddHandler?

[WoistdasNiveau]

I guess fro mthe documentation i would have to set Combobox.AddHandler(PointerWheelChanged, MethdToCall, RoutingStrategies.Tunnel). Is this correct? The ComboBox, however, lies within a DataGrid so i cannot just give it a Name and add the handler in the Code behind as it is gerneated dynamically with the data. Is there any other option then rewritng the Datagrid completely in C# in the code behind?

[timunie]

You can listen to Loaded event of the ComboBox and inside this event, you know that sender is your control, where you can add the Tunnel event. How this is clear enough?

[timunie]

@WoistdasNiveau maybe you can also try AutoCompleteBox. It has an option for loading items async and user can start typing any character to search for users.

[WoistdasNiveau]

AutoCompleteBox would be a good alternative too, a mix of the Combo and AutoCompletebox would be perfect. The problem, however, i need to use both in a Dartagrid, so i cannot assign the AsyncPopulator like it is done in the avalonia examples and i could not figure out the correct way to bind the method from the Viewmodel. Can you tell me how to bind the ASyncPopulator from the ViewModel? I have tried creating a Property of Type Func<,> but nothing gets triggered.