[C#][MVC] Abstract factory model binder

Mvc abstract factory model binder

 public class AbstractFactoryModelBinder : DefaultModelBinder
    {
        public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            var modelType = bindingContext.ModelType;
            if (modelType.IsAbstract)
            {
                var value = bindingContext.ModelName == "model" ? bindingContext.ValueProvider.GetValue("Type") : bindingContext.ValueProvider.GetValue(bindingContext.ModelName + ".Type");
                if (value == null)
                    throw new ApplicationException("View does not contain Type");

                var factoryMethod = modelType.GetMethod("CreateFor");
                if (factoryMethod == null)
                {
                    throw new ApplicationException("Abstract factory must have static CreateFor (String type) method!");
                }
                var model = factoryMethod.Invoke(null, new object[]{value.AttemptedValue});

                var instance = bindingContext.Model ?? base.CreateModel(controllerContext, bindingContext, model.GetType());
                bindingContext.ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(() => instance, model.GetType());
            }
            return base.BindModel(controllerContext, bindingContext);
        }
    }