What is Action Executor and Action Executing?

In WPF, Action Executor and Action Executing are related to the command execution mechanism:

• Action Executor: An object that initiates the command execution (for example, a button click).
• Action Executing: An event or method that is called in response to the Action Executor. This is where the logic for executing the command resides.

This pattern allows separating the user interface from business logic. The Action Executor (for example, a control element) simply indicates that an action should be performed, while the Action Executing (a method in the ViewModel or Code-behind) implements how it should be executed.