Why delegates are used in c

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How to work with Action, Func, and Predicate delegates in C. How to work with attributes in C. How to use closures in C. Practically, it should be declared out of the class. After declaring a delegate, we need to set the target method or a lambda expression. We can do it by creating an object of the delegate using the new keyword and passing a method whose signature matches the delegate signature.

You can set the target method by assigning a method directly without creating an object of delegate e. After setting a target method, a delegate can be invoked using the Invoke method or using the operator. The delegate can point to multiple methods. A delegate that points multiple methods is called a multicast delegate.

If a delegate returns a value, then the last assigned target method's value will be return when a multicast delegate called. A generic delegate can be defined the same way as a delegate but using generic type parameters or return type. The generic type must be specified when you set a target method. For example, consider the following generic delegate that is used for int and string parameters. Delegate is also used to declare an Event and an Anonymous Method.

Learn more about delegate here.