reflection - How do I get the Array Item Type from Array Type in .net

Question

Say I have an System.String[] type object. I can query the type object to determine if it is an array

Type t1 = typeof(System.String[]);
bool isAnArray = t1.IsArray; // should be true

However how do I get a type object of the array item from t1

Type t2 = ....; // should be typeof(System.String)

Answer 1

You can use the instance method Type.GetElementType for this purpose.

Type t2 = t1.GetElementType();

[Returns] the type of the object encompassed or referred to by the current array, pointer, or reference type, or null if the current Type is not an array or a pointer, or is not passed by reference, or represents a generic type or a type parameter in the definition of a generic type or generic method.