public partial class CustomView : UserControl, IViewFor<CustomViewModel>
{
    public CustomViewModel ViewModel { get; set; }
    object IViewFor.ViewModel {
        get { return ViewModel; }
        set { ViewModel = value as CustomViewModel; }
    }

    public BridgeGeometryView()
    {
        InitializeComponent();

        this.Bind(ViewModel, x => x.SomeBindingList, x => x.DataGridBindingSource.DataSource);
    }
}

customView.ViewModel = new CustomViewModel(model)