We need to call a set of functions (currently around 30 or so) programatically by name. They all have the same signature so I've gone down the "invoke" route. I initially tried using delegates as I recalled doing that previously but that didn't achieve what I was after. So I've now looked at reflection to do it.
Dim webapiType as type = type.gettype("fully.qualified.model.webapi", true, true)
dim webAPIConstructor as system.reflection.constructorinfo = webapitype.getconstructor(type.emptytypes)
dim webapiClassObject as object = webapiConstructor.invoke(new object(){})
dim webapiMethod as system.reflection.methodinfo = webapitype.getmethod("myFunctionName")
dim webapiValue as object = webapimethod.invoke(webapiclassobject, new object(){model, xmlREsponse, msg, exDAL})
That all works fine and calls my function "myFunctionName" but it doesn't set the xmlResponse object value, that stays as nothing. (the function I'm calling has byval model, byref xmlREsponse, byref msg and byref exDal)
If I call the method directly rather than invoking it then the xmlResponse parameter is returned.
So the issue is that the values of the byRef values aren't being returned.
Is there some other way of invoking the method so that the ByRef parameters are returned correctly or do I need to investigate some other concept ?
(I've looked at CalledName and the documentation says that it only passes "ByVal" so that's no use)