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copied!<p>Another solution is to create an <code>ActionFilter</code> to decorate the actions in the controllers like this:</p> <pre><code> [GenericActionFilter(ModelType=typeof(ShowModel))] public ActionResult Edit(ShowQuery query) { return View(); } </code></pre> <p>and this is the <code>ActionFilter</code></p> <pre><code>public class GenericActionFilter : ActionFilterAttribute { public Type ModelType { get; set; } public override void OnActionExecuting(ActionExecutingContext filterContext) { base.OnActionExecuting(filterContext); IMediator mediator = null; if(filterContext.Controller is BaseController) { mediator = ((BaseController)filterContext.Controller).GetMediator(); object paramValue = filterContext.ActionParameters["query"]; var method = mediator.GetType().GetMethod("Request").MakeGenericMethod(new Type[] { ModelType }); var model = method.Invoke(mediator, new object[] { paramValue }); filterContext.Controller.ViewData.Model = model; } } } </code></pre> <p>and the <code>BaseController</code></p> <pre><code>public class BaseController : Controller { private readonly IMediator mediator; public BaseController():this(new Mediator()) { } public BaseController(IMediator mediator) { this.mediator = mediator; } public IMediator GetMediator() { return mediator; } } </code></pre> <p>this is based on an assumption which the <code>Request</code> method of the <code>Mediator</code> is a generic method like this:</p> <pre><code>public interface IMediator { TResponse Request<TResponse>(IQuery<TResponse> query); } </code></pre> <p>and </p> <pre><code>public class ShowQuery : IQuery<ShowModel> { public string EventName { get; set; } } </code></pre>

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