Delegate event handler c# example
C# Tutorial: Understanding C# Events. You can create an instance of the delegate pointing to a method. Then, every time you call the delegate, it calls the method for you. If the method returns a value, the delegate returns it for you. Heres a complete simple example.I will discuss only those parts about c# events and delegates which will make you comfortable working with. NET events. There are two main characters in the story of c# events and delegates. First one is called Delegate. Delegate is what function pointer is in the world of C. Only better behaved. delegate event handler c# example
Using Delegates with Events. The eventdelegate association is also defined in this object. A publisher class object invokes the event and it is notified to other objects. A subscriber is an object that accepts the event and provides an event handler. The delegate in the publisher class invokes the method (event handler) of the subscriber class.
This C# example program uses an event type with an EventHandler delegate. It uses Invoke to run all attached methods on the event. Example. The EventHandler delegate is associated with the event, and an instance of a custom event data object is provided. using System; namespace ConsoleApplication1 class Program static void Main (string [ args) Counter c new Counter (new Random (). Next (10)); c. ThresholdReached cThresholdReached;delegate event handler c# example C# adds on value to the often mentioned world of event driven programming by adding support through events and delegates. The emphasis of this article would be to identify what exactly happens when you add an event handler to your common UI controls.