Question

I have a question. Is it possible to call generic method using reflection in .NET?
I tried the following code

var service = new ServiceClass();
Type serviceType = service.GetType();
MethodInfo method = serviceType.GetMethod("Method1", new Type[]{});
method.MakeGenericMethod(typeof(SomeClass));
var result = method.Invoke(service, null);

But it throws the following exception “Late bound operations cannot be performed on types or methods for which ContainsGenericParameters is true.”

Answer 1

You’re not using the result of MakeGenericMethod – which doesn’t change the method you call it on; it returns another object representing the constructed method. You should have something like:

method = method.MakeGenericMethod(typeof(SomeClass));
var result = method.Invoke(service, null);

(or use a different variable, of course).