WPF DataGrid RowDetails Visibility binding to a property (with XAML only)

I have a DataGrid displaying bunch of Objects. Those objects have a property IsDetailsExpanded and I want to bind the DataRows DetailsVisibility property to that property.

My first approach works but requires some code-behind (which i would like to get rid of)

i handle the LoadingRow event

void LoadingRowHandler(object sender, DataGridRowEventArgs e)
{
    Binding b = new Binding()
    {
         Source = e.Row.DataContext,
         Path = new PropertyPath("IsExpanded"),
         Converter = (IValueConverter)Resources["BoolToVisi"],
         Mode = BindingMode.TwoWay
    };
    e.Row.SetBinding(DataGridRow.DetailsVisibilityProperty, b);
}

i think there has to be a way to achieve something similar in XAML but i unfortunately i have not the slightest clue. Any ideas? suggestions?