Object attribute in asp.net

It's easy to explain, but you are doing it wrong. Look at your title and tags. Why ASP.NET? It has nothing to do with ASP. The tag "object" is not informative, but the language tag would be more useful. But more important, what's the use of your question, even if you get an answer? It would not add any real knowledge at all. What you need is to read a book on .NET programming in general and do some exercises. So, sorry, I don't want to waste my time this time, as it won't be effective. Learning some general programming topic is a prerequisite for asking a question, not the other way around.

Cheers,
--SA