Default Folders Available inside the ASP.NET Application Folder:-
With the release of ASP.NET 2.0, Microsoft has greatly increased the power of
ASP.NET by introducing a suite of new features and functionalities.
ASP.NET defines several special folders. When a new Web site is created
the App_Data folder is created by default; it can contain a SQL Server 2005
Express Edition database, another database, or an XML data file that will be
used in the Web site.
From ASP.NET 2.0 versions Microsoft provided 8 integration directories to
integrate different resource in your application.
It is also called Data Directory.
Special folders that exist in ASP.NET that can be added to your Web site are as
below:
App_Browsers:
ASP.net reserves this folder name for storing browser definition files. Browser
definition files are used to determine the client browser capabilities. Browser
definition files have .browser extension.
These files are often used to help support mobile application.
App_Code:
App_code folder can contain source code for utility classes as well business
objects (.cs, .vb and .jsl files). Classes that are present in App_Code folder
are automatically complied when your web application complied.
Arbitrary file types can be placed in the App_Code folder to create strongly
typed objects. For example: placing Web
service files (.wsdl and .xsd files) in the App_Code folder creates strongly
typed proxies. Code present in App_Code is automatically referenced by ASP.net
Application.
App_Data:
App_Data is used to store file that can be used as database files (.mdf and xml
files). App_Data folder is used by ASP.NET application for storing ASP.NET
application local database. Developers can also use this folder for storing data
for their ASP.NET Application.
App_GlobalResources:
App_GlobalResources folder contains resources (.resx and .resources files) that
are compiled into assemblies and have a global scope.
Resource files are used to externalize text and images from your application
code. This helps you to support multiple languages and design-time changes
without recompilation of your source code. Resource files are strongly typed and
can be accessed programmatically.
App_LocalResources:
App_LocalResources folder contains resources (.resx and .resources files). The
same files that are being contained by App_GlobalResources but files located in
this folder are only available to a particular project, web page, master page or
web user control.
App_Themes:
Contain subfolders that each defines a specific theme or look and feel for you
Web site. A these consist of files (such as .skin, .css and image files) that
defines the appearance of Web pages and controls.
App_WebReferences:
Contains Web references files (.wsdl, .xsd, .disco, and .discomap files) that
define references to Web services.
Bin:
Bin folder contains compiled assemblies (.dll files) for code that you want to
reference in your application. Assemblies in Bin folder are automatically
reference in your application.
Special folders can be added to a Web site from the Visual Studio menu system.
Typically this involves right-clicking the Web Application project and selecting
Add ASP.NET folder.
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