Activator.CreateInstance 找不到构造函数

Question

我在 BaseRenderModel<TBaseEntity> class 中收到一个错误 Constructor on type 'Jahan.Nuts.Model.UModel.HomePage' not found.

我仔细检查了代码并在互联网上阅读了一些解决方案，但我无法解决我的问题。我在我的项目中使用了 Umbraco 7.3 (ASP.NET MVC)

我该如何解决这个问题？

namespace Jahan.Nuts.Model.UModel.URenderModel
{
public class BaseRenderModel<TBaseEntity> : RenderModel where TBaseEntity : BaseEntity
{

    public TBaseEntity Model { get; set; }
    public BaseRenderModel(IPublishedContent content, CultureInfo culture) : base(content, culture)
    {
        object args = new object[] { content, culture };
        Model = (TBaseEntity)Activator.CreateInstance(typeof(TBaseEntity), args); //Constructor on type 'Jahan.Nuts.Model.UModel.HomePage' not found.
    }
}
}

Class 基础实体：

public class BaseEntity
{
   public BaseEntity()
    {

    }
    public BaseEntity(IPublishedContent content, CultureInfo culture)
    {
       // some codes
    }
    public BaseEntity(IPublishedContent content)
    {
       // some codes
    }
}

Class 主页：

public class HomePage : BaseEntity
{
    public List<Photo> PhotoList { get; set; }

    public HomePage(IPublishedContent content, CultureInfo culture) : base(content, culture)
    {
        Initialize(content, culture);
    }
    public HomePage(IPublishedContent content) : base(content)
    {
        Initialize(content, null);
    }
    protected HomePage()
    {
    }
}

Class 主页控制器：

public class HomePageController : RenderMvcController
 {
    public override ActionResult Index(RenderModel model)
    {
        BaseRenderModel<HomePage> instance = new BaseRenderModel<HomePage>(model.Content, model.CurrentCulture);
        return base.Index(instance);
    }
}

Answer 1

这一行有错误：

object args = new object[] { content, culture };

当您将它传递给 Activator.CreateInstance 时，它正在寻找一个带有一个 object[] 参数的构造函数。您需要 args 成为 object[].

object[] args = new object[] { content, culture };

Activator.CreateInstance 找不到构造函数

Activator.CreateInstance can't find the constructor

c#

reflection

asp.net-mvc

umbraco