Data binding Int property to Enum in WPF

Below is a simplified example of a class I have:

public class ExampleClassDto 
{
     public int DriverTypeId
}

I also have an Enum that maps the Ids of DriverType to meaningful names:

public enum DriverType
{
    None,
    Driver1,
    Driver2,
    Driver3
}

But I want to bind this in XAML to a combobox. Unfortunately, because of the type mismatch, it doesn't like this. So in my ViewModel, I have to create a second property to map the two

public class ExampleViewModel
{
    private ExampleClassDto _selectedExampleClass;
    public ExampleClassDto SelectedExampleClass
    {
        get { return _selectedExampleClass; }
        set
        {
            _selectedExampleClass = value;
            SelectedDriverType = (DriverType)_selectedExampleClass.DriverTypeId;
            OnPropertyChanged("SelectedDeviceType");
        }
    }

public DriverType SelectedDriverType
{
    get
        {
            if (_selectedDeviceType != null) 
            { 
                return (DriverType)_selectedDeviceType.DriverTypeId;
            }
            return DriverType.None;
        }
        set
        {
            _selectedDeviceType.DriverTypeId = (int) value;
            OnPropertyChanged("SelectedDriverType");
        }
}
}

Then I bind to the new property.

<ComboBox ItemsSource="{Binding Source={StaticResource DriverTypeEnum}}" SelectedValue="{Binding SelectedDriverType, Mode=TwoWay}"/>

Now, this WORKS, but feels very gross. It's using SelectedDriverType as a converter. I want to avoid having to make the DTO's property a different type. Are there other, more elegant, solutions?

Thanks!