Interface Blogs

Nice tutorial, though the standart way is to define protected virtual method OnEventName, so as you said we can override it.

Hi, is there any way I can download the video? My internet here is slow for viewing online. Thanks :) Nice stuff.

Chua,

Right-click on the link [Click here to view in Windows Media Player] and choose "Save Target As..." from the context menu.

This lets you save the .WMV file to your computer.

I see. Thanks :)

I want to thank you for creating this video, it really makes understand the subject much easier when it is demonstrated and you do a good job of explaining it.

Hi Dan,

Nice example. You could even leave out the line where you define the StageCompletedHandler, by using generic EventHandles (.NET 2.0).

Then instead of using:
public event StageCompletedHandler StageCompleted;

you can do this:
public event EventHandler<StageCompletedEventArgs> StageCompleted;

I considered using the new generic EventHandler but figured it would be good to show the "standard" way since some may be using .NET 1.1 at this point. Thanks for commenting on it since now people can see both ways. For those doing .NET 2.0 apps I'd definitely use what Dion lists especially since it'll save you some code.

As far as the comment about protected with OnEventName, you're quite right. I caught that after the video was made but didn't want to go back and re-do it again to be honest since it takes some time to get right. :-)

Hi Dan,

I had the last step everytime wrong. But now I know, how is running. Thanks so lot.

Horanyi

No problem...glad you enjoyed the video. :-)

Nice, vid. Helped ALOT.

Hi Dan Wahlin

At last time I couldn't do that event handale as customizly.but after seen this vid I can do that.So it is very usefull for me.so thanks a lot

Anushka K Rajasingha

Great tutorial, even for starters like me

thanks

Thanks for the video.


Read through several books to understand what delegates are. All were confusing.

This video clarified everything.


Thanks a lot.

Fantastic job with this video! I have spent days trying to figure delegates and events, and this clarified what I needed.

One thought - I needed to implement this for a web user control I had built, and as referenced above the event came along AFTER the page had finished rendering. I sorted that by resetting the event handlers in the Page_Load event, which is called before the event is serviced in the control. I'm sort-of nervous about this, however it appears to work just fine and is a heck of a lot simpler than using async methods.

Good job - well done! Andrew

Thank you so much for the video. I have spend so much time off and on trying to get this right. ...then when I think I have it right something just doesn't seem exactly correct.

Everything now seems to be working normally (i.e. like eveything else does in C#).

Well done!.

-W