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Event Handling in .NET Using C#
Introduction
In this article I discuss the event handling model in .NET using C#. The discussion starts with an introduction to the concept of delegates and then it extends that concept to events and event handling in .NET. Finally, I apply these concepts to GUI event handling using windows forms. Complete code is provided in each step of the discussions.
Event handling is familiar to any developer who has programmed graphical user interfaces (GUI). When a user interacts with a GUI control (e.g., clicking a button on a form), one or more methods are executed in response to the above event. Events can also be generated without user interactions. Event handlers are methods in an object that are executed in response to some events occurring in the application. To understand the event handling model of .Net framework, we need to understand the concept of delegate.
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While it's very nice to know the "How" when explaining syntax, more importantly is they "why" in terms of practical real-life use within a C# application. It would be nice of you would have included some true examples of when you would need to use one and why.
This is one of the best articles i have come across on Delegates and Event.. Good Job!
Line:
public class MyEventArgs EventArgs {
should read:
public class MyEventArgs : EventArgs {
Otherwise, great article!
Can anyone help me pls!!!
I am facing a big problem to code the gui buttons!! I am doing a C# project. this project consists of a telephone graphical user interface!!
can anyone tell me what can i do to code the number buttons to display the telephone number into a textfield...
I need this urgent plsssss!!!!!!
Thanks for your help!!!!!!
I need to know how can I trap an Outlook Event (Saving an Item) using C#. Any example will be highly appreciated.
Thanks in advance!!
How can I create asynchrous events?
Using delegates and events I get synchronous calls?
Please advise.
Hi,
I am using certain, COM Components, I need to know the delegate signature, to create event handler. Is there any tools to do this? or if I need to do manually which is the easiast way to know the exact signature of those events raised by the COM components.
Very good example. it can be better hadling browser events, with .NET of course.