Hi,

Iam the beginner to the asp.net.

I gone through the code of the TimeTracker.

What is the use of DataAccessHelper.cs?

What is the Difference between

DataAccess dc = (DataAccess)Activator.CreateInstance(dataAccessType); and

DataAccess dc=new DataAccess()

Please explain me in detail..

Thanks in advance..

CreateInstance uses reflection and is much slower than using new DataAccess() the benefit with reflection is you can create a dynamic instance like a user configured type, mostly used in plug-in architectures. Another benefit with Activator.CreateInstance is that you can create an instance off non-public members too.

Shortly:

If you know the type when writing the code use new DataAccess(), if the type is defined runtime use reflection.

Hi Great Man,
you can see Great Explaination of same with examples here
http://blogs.msdn.com/haibo_luo/archive/2005/11/17/494009.aspx

Regards

http://bytes.com/topic/c-sharp/answers/244339-activator-createinstance-versus-new 

Have you got the difference

Thanks, I got the difference.

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Thanks