Dot.Net: Asynch Method Call Sample

Question:

Do you have an example of a standard asynchronous method call with callback in CSharp ?
Any event driven asynchronous sample in dot.net ??

Dot.Net: Expose Custom Events

Question:

How do I expose custom events in a c# class?
How do I create custom event, event delegate, event arguments in dot.net?

Javascript: stop event propagation on click event

Question:

How to stop my click event to propagate to the document level?

I have a click event on a link and one on the div container around it. How do I prevent the click event, that I handle in the click event handler on the link, to bubble up to the container?