protected override void Arrange()
        {
            base.Arrange();

            sectionViewModel             = SectionViewModel.CreateSection(Container, "mocksection", new MockSectionWithUnnamedCollection());
            toggleSectionExpandedCommand = sectionViewModel.Commands.OfType <ToggleExpandedCommand>().First();
        }
        protected override void Arrange()
        {
            base.Arrange();

            sectionViewModel = SectionViewModel.CreateSection(Container, "mocksection", new MockSectionWithUnnamedCollection());
            toggleSectionExpandedCommand = sectionViewModel.Commands.OfType<ToggleExpandedCommand>().First();
        }