How do I tell if a type is a “simple” type? i.e. holds a single value

Question

typeof(string).IsPrimitive == false
typeof(int).IsPrimitive == true
typeof(MyClass).IsClass == true
typeof(string).IsClass == true
typeof(string).IsByRef == false
ty         


        

Answer 1

In Addition to Stefan Steinegger answer: In .NET Core the .IsPrimitive etc. are no longer members of Type, they are now members of TypeInfo. So his solution will then become:

bool IsSimple(TypeInfo type)
{
    if (type.IsGenericType && type.GetGenericTypeDefinition() ==     typeof(Nullable<>))
    {
        // nullable type, check if the nested type is simple.
        return IsSimple((type.GetGenericArguments()[0]).GetTypeInfo());
    }
    return type.IsPrimitive
      || type.IsEnum
      || type.Equals(typeof(string))
      || type.Equals(typeof(decimal));
}