c# – 带有StructureMap的Model-View-Presenter模式中的Presente

我已经实现了我自己的模型视图演示者模式的副本(在Web客户端软件工厂的静脉中),所以我可以利用我自己的DI框架而不是绑定到WCSF的ObjectBuilder,我遇到了很多问题.我想出了几个方法来做到这一点,但没有一个特别让我开心.我想知道是否有其他人有其他想法.

解决方案#1a

使用HttpModule拦截context.PreRequestHandlerExecute来调用ObjectFactory.BuildUp(HttpContext.Current.Handler)

public partial class _Default : Page,IEmployeeView
{
    private EmployeePresenter _presenter;

    private EmployeePresenter Presenter
    {
        set
        {
            _presenter = value;
            _presenter.View = this;
        }
    }
}

解决方案#1b

在页面加载中调用buildup而不是使用HttpModule

public partial class _Default : Page,IEmployeeView
{
    private EmployeePresenter _presenter;

    private EmployeePresenter Presenter
    {
        set
        {
            _presenter = value;
            _presenter.View = this;
        }
    }

    protected void Page_Load(object sender,EventArgs e)
    {
        ObjectFactory.BuildUp(this);
    }
}

解决方案#1c

如果需要,通过Property访问presenter允许Getter to BuildUp.

public partial class _Default : Page,IEmployeeView
{
    private EmployeePresenter _presenter;

    public EmployeePresenter Presenter
    {
        get
        {
            if (_presenter == null)
            {
                ObjectFactory.BuildUp(this);
            }

            return _presenter;
        }
        set
        {
            _presenter = value;
            _presenter.View = this;
        }
    }
}

解决方案#2

public partial class _Default : Page,IEmployeeView
{
    private EmployeePresenter _presenter;

    private EmployeePresenter Presenter
    {
        get
        {
            if (_presenter == null)
            {
                _presenter = ObjectFactory.GetInstance<EmployeePresenter>();
                _presenter.View = this;
            }

            return _presenter;
        }
    }
}

解决方案#2b

public partial class _Default : Page,IEmployeeView
{
    private EmployeePresenter _presenter;

    private EmployeePresenter Presenter
    {
        get
        {
            if (_presenter == null)
            {
                Presenter = ObjectFactory.GetInstance<EmployeePresenter>();
            }

            return _presenter;
        }
        set
        {
            _presenter = value;
            _presenter.View = this;
        }
    }
}

编辑：添加解决方案1c,2b

public partial class _Default : AbstractPage,IEmployeeView
{
    private EmployeePresenter presenter;

    private EmployeePresenter Presenter
    {
        set
        {
            presenter = value;
            presenter.View = this;
        }
    }
    protected override void Do_Load(object sender,EventArgs args)
    {
        //do "on load" stuff 
    }

}

public abstract class AbstractPage : Page
{
    protected void Page_Load(object sender,EventArgs e)
    {
        ObjectFactory.BuildUp(this);
        this.Do_Load(sender,e); 
        //template method,to enable subclasses to mimic "Page_load" event

    }
    //Default Implementation (do nothing)
    protected virtual void Do_Load(object sender,EventArgs e){}
}