Common misconceptions about MVVM

There are several common misconceptions about MVVM that can lead to misunderstandings of its principles and best practices. Let’s dispel some of these and provide clarity on the pattern.

There should be no code in the code-behind

While it is true that the main purpose of MVVM is to separate the presentation logic from the application logic, it is not necessarily the case that there should be no code in the code-behind. The code-behind can still be used to handle simple UI-related events or for any logic that is tightly coupled with the View.

In fact, there are scenarios where putting some code in the code-behind can be more efficient and maintainable than trying to move everything to the ViewModel. For example, handling UI animations, scrolling, and controlling focus or complex visual behaviors may be easier to implement in the code-behind rather than trying to do it through data binding.

To ensure proper separation of concerns in...