Session.CreateCriteria(typeof(Сategory))

    .SetFetchMode("Post", FetchMode.Eager)

    .List();

interface IViewInterface
    {
        void SetDomainSomeEntitiesList(IList<DomainSomeEntities> entities);
        void ShowError(string error);
        bool GetConfirmation(string question); 
        event EventHandler BeforeViewClosed;
        event EventHandler ShowDomainSomeEntitiesDetailPressed; 
    }

class DomainSomeEntitiesListPresenter
    {
        private readonly IViewInterface _view;
        private readonly ICollection<DomainSomeEntities>  _model; 
      
        public DomainSomeEntitiesListPresenter(IViewInterface view, ICollection<DomainSomeEntities> model)
        {
            _model = model; 
            _view = view;
        }
    }

 class View : Form, IViewInterface
    {
        #region Implementation of IViewInterface

        public void SetDomainSomeEntitiesList(IList<DomainSomeEntities> entities)
        {
            // грид или другой, используемый нами компонент, обновил данные 
            _bindingSource.DataSource = entities; 
        }

        public void ShowError(string error)
        {
            MessageBox.Show(error); 
        }

        public bool GetConfirmation(string question)
        {
            return new DialogResultForm(message).ShowDialog() == DialogResult.OK; 
        }

        public event EventHandler BeforeViewClosed;
        public event EventHandler ShowDomainSomeEntitiesDetailPressed;

        private void FormCloseBeforePressed(object sender, EventArgs e)
        {
            if (BeforeViewClosed != null)
            {
                BeforeViewClosed(this, EventArgs.Empty); 
            }
        }

        private void ButtonShowDetailClicked(object sender, EventArgs e)
        {
            if (ShowDomainSomeEntitiesDetailPressed != null)
            {
                ShowDomainSomeEntitiesDetailPressed(this, EventArgs.Empty); 
            }
        }

        #endregion
    }

var view = new View() 
ICollection<DomainSomeEntities> collection = SomeDataLayerServiceOrRepositoryOrOrmSession.GetSomeDomainCollection(); 
new Presenter(IView, collection); 
Application.Start(view); 

private void ButtonShowDetailClicked(object sender, EventArgs e)
        {
            DetailViewForm detailView = new DetailViewForm();  
            DetailPresenter detailPresenter = new DetailPresenter(detailView, _bindingSource.Current );
            detailView.View();  
        }