Here is an answer to the C# interview question "When would you use delegates in C#?":
Delegates in C# are used to pass methods as arguments to other methods or to store methods in variables. They are useful in several scenarios:
Event Handling
Delegates are commonly used in event handling. When an event occurs, the event source calls a method on the delegate, which in turn calls the event handler method that was assigned to the delegate by the event subscriber.
Callbacks
Delegates allow you to pass a method as an argument to another method. The method passed as an argument is called a callback method and is executed by the calling method when certain conditions are met.
LINQ Queries
LINQ uses delegates extensively, particularly with the Func<> and Action<> generic delegates. When you use LINQ query expressions, the compiler translates them into method calls t...
