Question

How do you name delegates, events and instance of events?

I use this:

delegate void OnSomethingHandler(); event OnSomethingHandler onSomething; 

Is this an accepted way? Notice lower and upper cases

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Where do you place delegates and events?

I usually put delegates in an a namespace best reflecting them:

mynamespace.Def.SomethingLike {  } mynamespace.Def.SomethingElseLike {  } 

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Where do you define events?

I usually place them into the class that uses them.

I notice that a lot of people define delegates and events in the same class. How common is that?

Answer 1

Everything you have looks pretty standard – the only thing I would change is that the event name would be Something rather than onSomething. Following Microsofts convention you would end up with something more like this:

delegate void SomethingHandler(); event SomethingHandler Something;  protected void OnSomething() {     if (this.Something != null)         this.Something(); } 

And as a cool trick you can add an empty delegate to your Something event so that you don’t have to check the event for null before you raise it:

delegate void SomethingHandler(); event SomethingHandler Something = delegate {};  protected void OnSomething() {     this.Something(); }