如果只在运行时知道类型参数,如何调用泛型方法? [英] How do you call a generic method if you only know the type parameter at runtime?
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问题描述
我有这个方法:
I have this method:
public List<T> SomeMethod<T>( params ) where T : new()
所以我想调用这个<$
So I want to call this SomeMethod
which is fine if I know the type:
SomeMethod<Class1>();
但是如果我在运行时只有 Class1
我无法调用它?
But if I only have Class1
at runtime I'm unable to call it?
那么如何调用带有未知T类型的 SomeMethod
?
So how to call SomeMethod
with unknown T type? I got Type by using reflection.
我有Type的类型,但是 SomeMethod< Type | GetType()>
不起作用。
I have the Type of type but SomeMethod<Type | GetType()>
doesn't work.
更新7. May:
以下是我想实现的示例代码:
Here is a sample code of what I want to achieve:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
namespace ConsoleApplication63
{
public class DummyClass
{
}
public class Class1
{
public string Name;
}
class AssemblyTypesReflection
{
static void Main(string[] args)
{
object obj = new Class1() { Name = "John" } ;
Assembly assembly = Assembly.GetExecutingAssembly();
var AsmClass1 = (from i in assembly.GetTypes() where i.Name == "Class1" select i).FirstOrDefault();
var list = SomeMethod<AsmClass1>((AsmClass1)obj); //Here it fails
}
static List<T> SomeMethod<T>(T obj) where T : new()
{
return new List<T> { obj };
}
}
}
这是一个演示。
This is a demo taken out of a bigger context.
推荐答案
您需要使用反射来调用它:
You need to call it using reflection:
var method = typeof(SomeClass).GetMethod("SomeMethod");
method.MakeGenericMethod(someType).Invoke(...);
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