A delegate is a reference to a function, just like the pointers that we use in C or C++, to reference a variable. In the same way, we use delegates to reference functions in programming. Why we need a Delegate

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Delegates are method wrappers that can be passed to a code which can invoke wrapped method without any compile-time knowledge of which method will be invoked actually. A delegate is an object which refers to a method or you can say it is a reference type variable that can hold a reference to the methods. Delegates in C# are similar to the function pointer in C/C++. It provides a way which tells which method is to be called when an event is triggered. An operator is a symbol that operates on a value or a variable.

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Delegate usage in c#

19 Feb 2019 NET Framework, especially when using C# or Visual Basic. Events, a special application of delegates, are used all over the framework. And the 

Delegate usage in c#

Example: C# delegate class Program.

Delegate usage in c#

It is not necessary to use delegates with parameters; we can use delegates with parameters and without parameters.
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Before starting delegates you must understand what delegate  17 Feb 2020 Delegate class. Also, delegates can hold multiple references for methods, and they are called as multicast. Let's see the very basic example of a  5 Jun 2019 So, this book always uses specific term “delegate type” or “delegate instance” when mentioning a delegate. Function type.