How to notify all instance of a class that a change is happened

[C# Programming]

Hi,

I am using VS 2008 to develop an application. In this application
i have List of Contacts. This list may contain thousands of contact's.
I have
class Contact
{
......
.........
};


i want to give a signal to all instances of this class that a changed had happen. How can i do this.


thanks

Nitheesh

Jose Jo Martin

http://www.simpletools.co.in