I find this to be a common problem for new people to Real Studio. They will try to work with an object and rather than using the instance of a class they use the class name itself. The resulting error is:
This method or property does not exist.
The first initial response is, “Of course it !$#^ exists! I just coded it! Stupid Real Studio.” I totally understand the reaction because I’ve been there and done that and have the t-shirt to prove it. It’s frustrating because the compiler message doesn’t really give you the real reason for the error.
The error is misleading but I’m not sure there’s a way for the compiler to come up with a, “You cannot call methods or properties of a base class without an instance,” message. There are times when you can call a Shared Method or Shared Property of a base class but those are fairly rare (so far) in the Real Studio framework.
It sucks that the IDE code editor auto complete lets you call methods and properties from the base class rather than the instance. For all of the times that auto complete is good, this is an instance where relying upon it can be a misleading and lead to poor decisions when writing your code.
I also blame the way Real Studio names their controls and classes by default. Class1, Class2, Button1, Button2, etc are really poor ways to name your objects but that’s the way Real Studio defaults their names. I would almost prefer a GUID name so it would force developers to come up with meaningful names. If nothing else, it would certainly help if, when adding a control or class, the first thing to get the focus is the name in the properties list.
This poor default naming conventions is part of the reason why we, at BKeeney Software, name everything we reference in code (and many things we don’t call either). The names of our classes, controls, methods, and variables are consistent across our three full-time Real Studio consultants so that when one of the other three has to look at code we’re constantly not having to look back at the Window Layout Editor or base class to find out what the object does.
It seems overkill, but we work on about two dozen big projects a year an we’ve been doing this for ten years. There’s no way that I can remember what I did ten years ago much less six months ago. So we try to be consistent with how we name things. You should too because as your project grows there will be portions of your project you won’t see for months and even years. Why not make life easier for your future self?