Question

我正在尝试解析一个继承基本控制器并实现特定类的通用控制器。我对“事物”命名的措辞并不是最好的，所以我将尝试用代码解释它。

public class BaseObject
{
}

public class TestObject : BaseObject
{
}

public class BaseController<T> : Controller
{
}

public class TestObjectController : BaseController<TestObject>
{
    public ActionResult Index()
    {
        return View(new TestObject());
    }
}

 public static MvcHtmlString RenderObj<TModel, TProperty>(this HtmlHelper<TModel> helper,
        Expression<Func<TModel, TProperty>> expression)
{

    var name = ExpressionHelper.GetExpressionText(expression);
    var metaData = ModelMetadata.FromLambdaExpression(expression, helper.ViewData);
    var baseObject = metaData.Model as BaseObject; //In this case baseObject is TestObject

    var type = baseObject.GetType();

    var assembly = type.Assembly;
    var t = assembly.GetTypes(); //Here I want to find TestObjectController<TestObject>
}

Answer 1

简单的控制台应用程序，没有经过彻底的测试，但应该让你走在正确的轨道上。我留下错误检查并进一步向下过滤给你：

static void Main(string[] args)
{

    // obviously you already have this
    BaseObject obj = new TestObject();

    // you know this
    var myType = obj.GetType();

    // you know the type of the base class
    var baseControllerType = typeof(BaseController<>);

    // make the type generic using your model type
    baseControllerType = baseControllerType.MakeGenericType(myType);

    // the baseControllerType is now Generic BaseController<TestObject>

    // reference all types in a variable for a 'cleaner' linq query expression
    var allTypes = Assembly.GetEntryAssembly().GetTypes();

    // get all types that are a sub class of BaseController<TestObject>
    var daController = (from type in allTypes
                        where type.IsSubclassOf(baseControllerType)
                        select type).FirstOrDefault();

    // optionally create an instance.
    var instance = Activator.CreateInstance(daController);

}

public class BaseObject
{
}

public class TestObject : BaseObject
{
}

public class BaseController<T>
{
}

public class TestObjectController : BaseController<TestObject>
{

}

解析继承基本控制器并实现特定类的通用控制器

1 个答案: