The Convert Abstract Class to Interface refactoring allows you to convert an abstract class to an interface. This is especially useful when you want a class to inherit
from more than one abstract class, thus you need to convert one of them to an interface. The reverse functionality is available
with the
To turn a suitable abstract class method into an interface
- Place the caret at the name of an abstract class in the editor, in the File Structure window, in Class View or Object Browser.
- Do one of the following:
- On the main menu, choose ReSharper | Refactor | Convert | Abstract Class to Interface.
- Press Ctrl+Shift+R, then click Convert Abstract Class to Interface.
- If no conflicts are identified, the abstract class is converted into an interface with the same name. At the same time, modifiers
of methods are changed accordingly. Otherwise,
resolve conflicts .
Consider the example below: 
After applying the refactoring, the CacheManager class is converted into the CacheManager interface: 
You can change the name of the newly formed interface using the