Question

我对C＃编程很陌生。我开始使用MVVM模式和Caliburn.Micro框架开发WPF应用程序。我还添加了Caliburn.Micro.Contrib库，因为它包含一些有用的对话框。

我尝试在我的项目中使用它，但我无法让它工作。当我点击应该显示对话框的按钮时，我有一个空窗口，说无法找到该视图：（Caliburn.Micro.Contrib.Dialogs.DialogViewModel`1 [Caliburn.Micro.Contrib.Dialogs.Answer]）

我已经设置了Caliburn.Micro引导程序来嵌入CM Contrib程序集：

protected override IEnumerable<Assembly> SelectAssemblies()
{
    return base.SelectAssemblies().Concat(new Assembly[] { typeof(ResultExtensions).Assembly       }); 
}

我的视图模型类中的execute方法：

public IEnumerable<IResult> DeleteItem()
    {
        var question = new Question("The Subject","The Message", Answer.Yes, Answer.No);

        yield return question.AsResult().CancelOnResponse(Answer.No);

    }

提前感谢您的帮助。

修改：

这里是完整的bootstrap

 public class NInjectBootstrapper<TRootModel> : Bootstrapper<TRootModel>
{
    protected IKernel Kernel { get; private set; }
    /// <summary>
    /// The base type required for a view model
    /// </summary>
    public Type ViewModelBaseType { get; set; }

    protected override void Configure()
    {
        //  allow base classes to change bootstrapper settings
        ConfigureBootstrapper();

        var loadedAssemblies = AppDomain.CurrentDomain.GetAssemblies().ToList();
        var loadedPaths = loadedAssemblies.Select(a => a.Location).ToArray();

        var referencedPaths = Directory.GetFiles(AppDomain.CurrentDomain.BaseDirectory, "*.dll");
        var toLoad = referencedPaths.Where(r =>r.Contains("TxS.") && !loadedPaths.Contains(r, StringComparer.InvariantCultureIgnoreCase)).ToList();
        toLoad.ForEach(path => loadedAssemblies.Add(AppDomain.CurrentDomain.Load(AssemblyName.GetAssemblyName(path))));


        Bootstrapper.With.Ninject().Start();   

        Kernel = Bootstrapper.Container as IKernel;


        //ViewLocator.AddNamespaceMapping("Caliburn.Micro.Contrib.Dialogs", "TxSGUI.Views");
    }

    protected override object GetInstance(System.Type service, string key)
    {
        object instance;
        if (string.IsNullOrWhiteSpace(key))
        {
            instance = Kernel.TryGet(service);
        }
        else
        {
            instance = Kernel.TryGet(service, key); 
        }

        if(instance == null)
            throw new Exception(string.Format("Could not locate any instances of contract {0}", key ?? service.Name));


        return instance; 
    }

    protected override IEnumerable<object> GetAllInstances(System.Type service)
    {
        return Kernel.GetAll(service);
    }

    protected override void BuildUp(object instance)
    {
        Kernel.Inject(instance);
    }

    protected virtual void ConfigureBootstrapper()
    {   
        //  the default view model base type
        ViewModelBaseType = typeof(System.ComponentModel.INotifyPropertyChanged);
    }


    protected override IEnumerable<Assembly> SelectAssemblies()
    {
        return base.SelectAssemblies().Concat(new Assembly[] { typeof(ResultExtensions).Assembly });
    }

    /// <summary>
    /// Override to include your own Autofac configuration after the framework has finished its configuration, but 
    /// before the container is created.
    /// </summary>
    /// <param name="builder">The Autofac configuration builder.</param>
    protected virtual void ConfigureContainer(IKernel builder)
    {
    }
}

和NInject模块（绑定视图和其他东西）

  public class TxSGuiModule : NinjectModule
{
    public override void Load()
    {
        // Bind Window Manager
        Kernel.Bind<IWindowManager>().To<WindowManager>().InSingletonScope();

        // Bind Event Aggregator
        Kernel.Bind<IEventAggregator>().To<EventAggregator>().InSingletonScope();

        // Bind Main View
        Kernel.Bind<TxSMainViewModel>().To<TxSMainViewModel>().InSingletonScope().Named(typeof(TxSMainViewModel).Name);

        // Bind Views
        Kernel.Bind(x => x.FromThisAssembly()
            .SelectAllClasses().InheritedFrom<IShell>()
            .Where(t => t.Name.EndsWith("ViewModel") && t.Namespace.StartsWith("TxSGUI"))
            .BindSelection((a, c) =>
            {
                IList<Type> list = new List<Type>();
                list.Add(typeof(IShell));
                list.Add(a);

                return list;
            })
            .Configure(b => b.InTransientScope()));

        // Bind Actions
        Kernel.Bind(x => x.FromThisAssembly().SelectAllClasses().InheritedFrom<IAction>().BindAllInterfaces().Configure(b => b.InSingletonScope()));
    }
}

激活Caliburn Log后，我在这里：

07/31/2013 14:46:21 - INFO - [Coroutine] - Executing coroutine.  
07/31/2013 14:46:21 - WARN - [ViewLocator] - View not found. Searched: Caliburn.Micro.Contrib.Dialogs.Dialog.Question.  
07/31/2013 14:46:21 - INFO - [ViewModelBinder] - Binding System.Windows.Window: Cannot find view for Caliburn.Micro.Contrib.Dialogs.DialogViewModel`1[Caliburn.Micro.Contrib.Dialogs.Answer]. and Caliburn.Micro.Contrib.Dialogs.DialogViewModel`1[Caliburn.Micro.Contrib.Dialogs.Answer].  
07/31/2013 14:46:21 - INFO - [Action] - Setting DC of System.Windows.Window: Cannot find view for Caliburn.Micro.Contrib.Dialogs.DialogViewModel`1[Caliburn.Micro.Contrib.Dialogs.Answer]. to Caliburn.Micro.Contrib.Dialogs.DialogViewModel`1[Caliburn.Micro.Contrib.Dialogs.Answer].  
07/31/2013 14:46:21 - INFO - [Action] - Attaching message handler Caliburn.Micro.Contrib.Dialogs.DialogViewModel`1[Caliburn.Micro.Contrib.Dialogs.Answer] to System.Windows.Window: Cannot find view for Caliburn.Micro.Contrib.Dialogs.DialogViewModel`1[Caliburn.Micro.Contrib.Dialogs.Answer]..  
07/31/2013 14:46:21 - INFO - [ViewModelBinder] - Attaching System.Windows.Window: Cannot find view for Caliburn.Micro.Contrib.Dialogs.DialogViewModel`1[Caliburn.Micro.Contrib.Dialogs.Answer]. to Caliburn.Micro.Contrib.Dialogs.DialogViewModel`1[Caliburn.Micro.Contrib.Dialogs.Answer].

Answer 1

我再次浏览了源代码并找到了问题的根源。它位于DialogResult类型中，特别是Execute的{{1}}方法，它将上下文参数传递给导致问题的IResult。

我看得更远了，发现了一篇由图书馆作者撰写的关于对话框的文章，评论中的一些文章与你的问题有同样的问题，建议的解决方案是调用{{1}中的以下代码行你的引导程序的方法：

WindowManager.ShowDialog()

以下是Comment的链接，此处为article。

如果这不起作用，我没有别的话要说，我尽我所能。

使用Caliburn.Micro.Contrib通用DialogBox

1 个答案: