The issue is that Activator.CreateInstance(Type, object[])
does not consider non-public constructors.
Exceptions
MissingMethodException: No matching
public constructor was found.
This is easily shown by changing the constructor to public
visibility; the code then works correctly.
Here’s one workaround (tested):
BindingFlags flags = BindingFlags.NonPublic | BindingFlags.Instance;
CultureInfo culture = null; // use InvariantCulture or other if you prefer
object instantiatedType =
Activator.CreateInstance(typeToInstantiate, flags, null, parameter, culture);
If you only require the parameterless constructor this will work as well:
//using the overload: public static object CreateInstance(Type type, bool nonPublic)
object instantiatedType = Activator.CreateInstance(typeToInstantiate, true)