来自运行时类型的泛型类 [英] Generics class from a runtime type

问题描述

大家好



我有一个在运行时构建的类（RClass）并且还有一个Generic类DataLoader，如何创建一种DataLoader< RClass>并使用其方法

Hi guys

i have a class that build in runtime(RClass) and also have a Generic class DataLoader, how can i create a type of DataLoader<RClass> and use its methods

public interface IDataLoader<GType>
{
//some code
   GType SampleMethod();
}

public class DataLoader <GType>: IDataLoader<GType>
{
  GType SampleMethod(){
    //some code
  }
}

//class "RClass" created in runtime
MyClassBuilder MCB=new MyClassBuilder("RClass");
var myclass = MCB.CreateObject(new string[3] { "id", "name", "link" }, new Type[3] { typeof(int), typeof(string), typeof(string) });
Type myclassType = myclass.GetType();

var dta = typeof(DataLoader<>).MakeGenericType(myclassType);
// ?????
var gs = (???)Activator.CreateInstance(dta);
gs.SampleMethod();

推荐答案

我想你想要使用的是：

I think what you want to use would be something like:

Type BTP = typeof(B).MakeGenericType(TP);
System.Reflection.ConstructorInfo ctorBTP = BTP.GetConstructor(Type.EmptyTypes);
dynamic a = ctorBTP.Invoke(null);

我无法想象在编译时将其强类型化为 B< TP> ，因为该类型不在编译时存在。

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