C# – Prolems Wiring Up Event Subscribers in Castle.Windsor Framework

c++castle-windsorinversion-of-control

I am having trouble wiring the events for my Castle.Windsor IoV components. Even though I have confirmed the methods and the signatures for them, it throws an exception with the message "Object does not match target type".

Can anyone please explain what object exactly its expecting?

My wiring looks like:

  <component
    id="mailManager"
    service="Pop3Dispatcher.Mail.IMailManager, Pop3Dispatcher"
    type="Pop3Dispatcher.Mail.DefaultMailManagerImpl, Pop3Dispatcher"
    startable="true"
    loadCompletedMethod="Init">
    <subscribers>
      <subscriber id="emailFilterImpl" event="MessageRecieved" handler="OnReceivedMessage"/>
    </subscribers>
  </component>

  <component 
    id="emailFilterImpl" 
    service="Pop3Dispatcher.Filters.IFilter, Pop3Dispatcher"
    type="Pop3Dispatcher.Filters.EmailFilterImpl, Pop3Dispatcher" 
    startable="true">
  </component>

Before anyone asks, yes I have included:

<facilities>

  <facility
      id="event.wiring"
      type="Castle.Facilities.EventWiring.EventWiringFacility, Castle.MicroKernel" />

</facilities>

Best Solution

Ok, problem solved, apparently in this case, the order of declaration matters. Alos, it doesnt support "services" and must be subscribd to the type directly.

  <component 
    id="emailFilterImpl" 
    type="Pop3Dispatcher.Filters.EmailFilterImpl, Pop3Dispatcher" 
    startable="true">
  </component>

  <component
    id="mailManager"
    type="Pop3Dispatcher.Mail.DefaultMailManagerImpl, Pop3Dispatcher"
    startable="true"
    loadCompletedMethod="Init">
    <subscribers>
      <subscriber id="emailFilterImpl" event="MessageRecieved" handler="OnReceivedMessage"/>
    </subscribers>
  </component>

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C# – How to handle multiple submit buttons in ASP.NET MVC Framework

Here is a mostly clean attribute-based solution to the multiple submit button issue based heavily on the post and comments from Maarten Balliauw.

[AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class MultipleButtonAttribute : ActionNameSelectorAttribute
{
    public string Name { get; set; }
    public string Argument { get; set; }

    public override bool IsValidName(ControllerContext controllerContext, string actionName, MethodInfo methodInfo)
    {
        var isValidName = false;
        var keyValue = string.Format("{0}:{1}", Name, Argument);
        var value = controllerContext.Controller.ValueProvider.GetValue(keyValue);

        if (value != null)
        {
            controllerContext.Controller.ControllerContext.RouteData.Values[Name] = Argument;
            isValidName = true;
        }

        return isValidName;
    }
}

razor:

<form action="" method="post">
 <input type="submit" value="Save" name="action:Save" />
 <input type="submit" value="Cancel" name="action:Cancel" />
</form>

and controller:

[HttpPost]
[MultipleButton(Name = "action", Argument = "Save")]
public ActionResult Save(MessageModel mm) { ... }

[HttpPost]
[MultipleButton(Name = "action", Argument = "Cancel")]
public ActionResult Cancel(MessageModel mm) { ... }

Update: Razor pages looks to provide the same functionality out of the box. For new development, it may be preferable.

C# – How to configure a single component instance providing multiple services in Castle.Windsor

Have you checked out the answer to this question (especially the forum post link) that appears to be what you are looking for. Some of the examples are using the Transient lifecycle but I think it will work with Singleton also.

The main pay-off of the forum post is:

container.Register(Component.For<IEntityIndexController, ISnippetController>()
.ImplementedBy<SnippetController>()
.LifeStyle.Transient);

The solution is uses the fluent interface (and a recent trunk build) and it wasn't possible to configure in xml last I saw. However, it may be possible with a facility.

Good luck!

Best Solution

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C# – How to handle multiple submit buttons in ASP.NET MVC Framework

C# – How to configure a single component instance providing multiple services in Castle.Windsor

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