Enum collection binding with CompiledBinding.

[FolderMaster]

I have a DataTemplate, which contains a ComboBox with an Enum in SelectedItem. I would like to provide a collection of enumerations Enum.GetValues(type) in ItemsSource without creating a separate property in the interface that will store this collection, with support for CompiledBindings.
x:Static, converters do not work: when selecting an item in the ComboBox, the value is not assigned to the property.
I tried to create my own MarkupExtension with CompiledBinding, but it also does not work:

public class EnumsExtension : MarkupExtension
{
    private readonly Type _type;

    public EnumsExtension(Type type) => _type = type;

    public override object ProvideValue(IServiceProvider serviceProvider)
    {
        var binding = new CompiledBindingExtension()
        {
            Mode = BindingMode.OneTime,
            DataType = typeof(IEnumerable<>).MakeGenericType(_type),
            Source = Enum.GetValues(_type)
        };
        return binding;
    }
}

How can I solve the problem?

[rabbitism]

Ursa provides a EnumSelector control. you can refer to its design. it is AOT compatible.

https://github.com/irihitech/Ursa.Avalonia/tree/main/src/Ursa/Controls/EnumSelector

[FolderMaster]

It doesn't work with CompiledBinding.

[FolderMaster]

Looks more like a bug. Tried with an additional property that contained an Enum collection, but it doesn't work. It doesn't work not only with ComboBox, but also with ListBox, that is, with list controls that have a selected element.

[kyuranger]

Not sure if this is what you want, I usually initialize enum collection like this:

[ObservableProperty]
ObservableCollection<NetworkTypeEnum> _AvailableNetworkTypesOC = new ObservableCollection<NetworkTypeEnum>(Enum.GetValues(typeof(NetworkTypeEnum)).Cast<NetworkTypeEnum>());

And then bind the ObservableCollection to the ItemsSource.

This is also available in CompiledBinding.

[FolderMaster]

It seems like I bind SelectedItem to ItemsSource. I tried to do the opposite, it didn't work either.
Link to axaml: https://github.com/FolderMaster/TaskManagerApp/blob/master/View/Assets/DataTemplates.axaml
You can see the whole project.

[kyuranger]

It seems like I bind SelectedItem to ItemsSource. I tried to do the opposite, it didn't work either. Link to axaml: https://github.com/FolderMaster/TaskManagerApp/blob/master/View/Assets/DataTemplates.axaml You can see the whole project.

I haven't tried using this with a DataTemplate, so I can't give you a proper answer. BTW, why not bind the itemsource to a ObservableCollection directly, This will make your code much simpler and clearer.

[FolderMaster]

The additional property pollutes the original class and doesn't work either.

[IanRawley]

Your Status property in ITask doesn't have a Setter, that's why you can't set it.

        public TaskStatus Status { get; }

Everything else works because both Getter and Setter are specified in the more specific ITaskElement interface. Only Status is left entirely inherited.

[FolderMaster]

It wasn't this interface that was the problem, since I use interfaces derived from it, but you were right that there was no setter for the property.