获取泛型类型数组中元素的类型(Obtaining the Type of the elements in an array of generic type)

获取泛型类型数组中元素的类型(Obtaining the Type of the elements in an array of generic type)

我有一个通用的包装类，它有时可以接收一个数组类型作为它的泛型。 我可以通过IsArray属性判断提供的泛型类型是否为数组。 但有没有办法可以在代码中获取数组元素的类型？ 我查看了Type对象的所有暴露属性，但没有看到它。

例：

public class wrap<T> { public void doSomething() { if (typeof(T).IsArray) Type arrayElementType = typeof(T).??? ; } } // typeof(T) when an array is "int[]" // typeof(T).BaseType is "System.Array" // how to get "int" out of this?

I have a generic wrapper class which can sometimes receive an array type as its generic. I can tell if the supplied generic type is an array by the IsArray property. But is there a way that I can obtain the type of the array elements in code? I've looked at all the exposed attributes of a Type object and just not seeing it.

Example:

public class wrap<T> { public void doSomething() { if (typeof(T).IsArray) Type arrayElementType = typeof(T).??? ; } } // typeof(T) when an array is "int[]" // typeof(T).BaseType is "System.Array" // how to get "int" out of this?

最满意答案

您正在寻找Type.GetElementType方法。

在派生类中重写时，返回当前数组，指针或引用类型所包含或引用的对象的Type。

Type arrayElementType = typeof(T).GetElementType();

You're looking for the Type.GetElementType method.

When overridden in a derived class, returns the Type of the object encompassed or referred to by the current array, pointer or reference type.

Type arrayElementType = typeof(T).GetElementType();