ASP.NET Folder structure Fallowed by VS

Hi Friends,

In my previous article i explained  about webconfig

Now i'm going to explain about Folder structure Derived by VS

App-Code Folder:


In this folder we store the shared class file and business logic  i mean file like dll,class file,  this can be referenced automatically  by your application

Main thing is items in the folder are recompiled when any changes are detected

App-Data Folder:

Contains application data files including .mdf database file, XML file and other data store files.
The App_Data folder is used by ASP.NET to store the application's local database, such as the
database for maintaining the role information.

App-Themes:

This contains the files that related to appearance of the web pages and control. The files like .CSS and .SKIN files 

Bin Folder

This contains the compiles assemblies such as .dll files for control, components, or other code that you want
to reference to your application

This above  folder are we use frequently in your application, if you want to more about folder structure
refer the fallowing link

http://msdn.microsoft.com/en-us/library/ex526337(v=vs.100).aspx