[BUG] WPF: ComboBox empty if bind to list<string> | ViewModelViewHost could not find a valid view for the view model

[djonasdev]

I have a ViewModel with the following property

public List<string> OperationModes { get; } = Enum.GetNames(typeof(EOperationMode)).ToList();

which I would like to bind to a ComboBox.

reactiveUI way | not working

this.OneWayBind(ViewModel, model => model.OperationModes, window => window.ComboBoxOperationMode.ItemsSource).DisposeWith(r);

If using reactiveUI to bind the list to the ComboBox, I get the following error in the console output.

console output

DefaultViewLocator: Failed to resolve view for view model type 'System.Object'.
DefaultViewLocator: Failed to resolve view for view model type 'System.Object'.
ViewModelViewHost: The ViewModelViewHost could not find a valid view for the view model of type System.String and value Passthrough.

xaml way | working

<ComboBox
	x:Name="ComboBoxOperationMode"
	ItemsSource="{Binding ViewModel.OperationModes}"/>

How can I solve this problem? Or is it not possible to bind a list<string> via reactiveUI?

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Original Stackoverflow post: https://stackoverflow.com/questions/55825647/rx-combobox-empty-if-bind-to-liststring-viewmodelviewhost-could-not-find-a

[glennawatson]

This isn't a bug. This is where if a DataMemberPath or ItemTemplate the Bind engine will look for registered IViewFor<TViewModel> inside splats locator to automatically display the view associated with the view model.

[djonasdev]

Could you please answer my question?

How can I solve this problem? Or is it not possible to bind a list<string> via reactiveUI to a ComboBox?

[glennawatson]

Hi there. We request all questions go to stack overflow or slack.

[glennawatson]

We are pretty strict on no question as issues. Just takes times of maintainers. Especially in this case since you already had answers on your stack overflow question. Good luck.