BasicBehavior.cs

public void Invoke()
{
	if (performInvoke() == DoNext.Continue && InsideBehavior != null)
	{
		InsideBehavior.Invoke();
	}

	afterInsideBehavior();
}

protected virtual DoNext performInvoke()
{
	return DoNext.Continue;
}

protected virtual void afterInsideBehavior()
{
}

CreateEntityAction.cs

public class CreateEntityAction<TEntity, TInput>
{
	private readonly IUnitOfWork _unitOfWork;
	private readonly IMappingRegistry _mappingRegistry;
	
	public CreateEntityAction(IUnitOfWork unitOfWork, IMappingRegistry mappingRegistry)
	{
		_unitOfWork = unitOfWork;
		_mappingRegistry = mappingRegistry;
	}
	
	public void Execute(TInput input)
	{
		var entity = _mappingRegistry.Map<TInput, TEntity>(input);
		_unitOfWork.Initialize();
		_unitOfWork.Insert(entity);
		_unitOfWork.Commit();
	}
}

IActionBehavior.cs

public interface IActionBehavior
{
    void Invoke();
    void InvokePartial();
}

MsMvcCreateProject.cs

public class ProjectsController
{
	// dependencies...
	[AcceptVerbs(HttpVerbs.Post)]
	public ActionResult Create(CreateProjectInput inputModel)
	{
		var result = _createEntityService.Create<Project>(inputModel);
		if(!result.Success)
		{
			result.Errors.Each(_errorService.Register);
			return Create();
		}
		
		return View("Details", new { ProjectId = result.Project.ProjectId });
	}
}

TryCatch.cs

public void Invoke()
{
	try
	{
		InsideBehavior.Invoke();
	}
	catch(Exception exc)
	{
		// we'd probably want better error reporting...
		_errorService.RegisterError(exc);
		// redirect
	}
}