Hey you can find what you looking for by downloading from here the sample app NetworkUsage. 

Monitor when the user enables/disables mobile data
I have a web project which is written in C# and uses SQL Server. I need to write an email notification system. I did some research and some people suggest to use CLR and some suggest to the business logic in C# code. I haven't done this system before and I want to know how other people do it.

What I have in my mind is to create a Queue table and and triggers for the tables I want to watch for changes. When the trigger is executed, it will insert an email request to the Queue table. Later, I will loop that queue table and send emails. I might be using Amazon web services to send emails in near future but not decided yet.

Do you think this is a good idea?
