Thank you for all your replies. I might be new to Thread1, but 'THECPUWINZARD' has been answering my queries eversince....
As Thread1 asked if I was mixing web programming and windows programming, I would say 'No' but they can be mixed as in the complex applications that are either web or windows through various interfacing techniques. Albeit, a web application remains as a web application and a windows appllication remains a windows application. I was just asking about the difference in the way of representing the classes for the UIs in web and windows applications for VB.NET where as for C#, the keyword partial is used in both the cases? Also, I asked for the reason as to why VB.NET and C# (to an extent a little lesser than VB.NET) hides the form designer code that is visible in VC++.NET? But again, even if it be a bad practise to split up the code behind class into 2 .cs (or more) files I would like to ask TheCPUWizard, whether that is possible? I am personally not going to do it, but I am just asking this out of curiousity...

Thankyou,
Bhushan.