WPF custom command in context menu are disabled until any button clicked

Question

I have a custom command and I try to execute them from the context menu, but they are always displayed as disabled unless I click any button on the UI (buttons do not have a

Answer 1

I just ran into this while trying to implement a custom context menu for AvalonDock. None of the solutions suggested above worked for me.

I got the context menu working by explicitly registering my command handlers on the ContextMenu class in addition to the main widow. The function below is a helper I used for command registration.

    void RegisterCmd(RoutedCommand command, ExecutedRoutedEventHandler handler, CanExecuteRoutedEventHandler canExecute)
    {
        var binding = new CommandBinding(command, handler, canExecute);
        this.CommandBindings.Add(binding);
        CommandManager.RegisterClassCommandBinding(typeof(ContextMenu), binding);
    }