从一个匿名对象动态创建一个对象

Question

使用类型生成器我很好地动态创建一个类型。是否有可能从匿名类型做到这一点？

我到目前为止;

//CreateType generates a type (so that I can set it's properties once instantiated) from an //anonymous object. I am not interested in the initial value of the properties, just the Type. 
Type t = CreateType(new {Name = "Ben", Age = 23}); 
var myObject = Activator.CreateInstance(t); 

现在是否可以使用类型“t”作为类型参数？

我的方法：

public static void DoSomething<T>() where T : new() 
{ 
} 

我想打电话给使用动态创建的“T”型这种方法。所以我可以打电话;

DoSomething<t>(); //This won't work obviously 

Answer 1

是的，这是可能的。要使用类型为类型的参数，你需要使用MakeGenericType方法：

// Of course you'll use CreateType here but this is what compiles for me :) 
var anonymous = new { Value = "blah", Number = 1 }; 
Type anonType = anonymous.GetType(); 

// Get generic list type 
Type listType = typeof(List<>); 
Type[] typeParams = new Type[] { anonType }; 
Type anonListType = listType.MakeGenericType(typeParams); 

// Create the list 
IList anonList = (IList)Activator.CreateInstance(anonListType); 

// create an instance of the anonymous type and add it 
var t = Activator.CreateInstance(anonType, "meh", 2); // arguments depending on the constructor, the default anonymous type constructor just takes all properties in their declaration order 
anonList.Add(t);