/// <summary>/// Allows custom code to execute after the return of a action./// </summary>public interface IResult {/// <summary>/// Executes the result using the specified context./// </summary>/// <param name="context">The context.</param>void Execute(ActionExecutionContext context);/// <summary>/// Occurs when execution has completed./// </summary>event EventHandler<ResultCompletionEventArgs> Completed;}

public class ActionExecutionContext
{public ActionMessage Message;public FrameworkElement Source;public object EventArgs;public object Target;public DependencyObject View;public MethodInfo Method;public Func<bool> CanExecute;public object this[string key];
}

    class HelloBootstrapper : Bootstrapper<MyViewModel>{}

    public class Loader : IResult{readonly string _str;public Loader(string str){_str = str;}public void Execute(ActionExecutionContext context){MessageBox.Show(_str + context.View);Completed(this, new ResultCompletionEventArgs());//这个方法一定要加到这里，这个方法完成后才会执行后边的方法
        }public event EventHandler<ResultCompletionEventArgs> Completed = (sender, args) =>{MessageBox.Show(((Loader)sender)._str );};}

<Window x:Class="CaliburnIresult.MyView"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:cal="http://www.caliburnproject.org"Title="MyView" Height="300" Width="300"><Grid><Button Content="IResult"  cal:Message.Attach="MyIResultClick"/></Grid>
</Window>

        public IEnumerable<IResult> MyIResultClick(){yield return new Loader("load.....");yield return new Loader("Ok!");}