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ASP.NET Working with Web Configuration Files



Our sites are configured based on hierarchy of XML configuration files. Machine.config is top level configuration file located in Config:
%WINDIR%\Microsoft.NET\Framework\<version>\Config\machine.config

These settings are framework level and common to all Windows, Console, Class Library, and Web application. Some of them could be overridden in Web.config while others are protected.

Next in hierarchy is Root.config. It’s located in Config:
%WINDIR%\Microsoft.NET\Framework\<version>\Config\web.config

It contains default web server settings.

Optionally one can add at root of all websites a web.config to provide general settings related to all sites. Optionally to provide more control on settings one can add web.config in each web site and for each folder in that web site.





Processing the Configuration files:
                                                Configuration files are processed in Global to specific order.
Machine.Config => (Config) web.config  (Root) web.config  (App) Web.config => (SubDir) Web.Config

Settings are overridden (non-protected) and than applied to specific folder.

Modifying the configuration Files:
                                                Configuration files can be modified in any text editor. .Net Framework 2.0 Configuration snap-in with Microsoft Management Console can be used. VS 2005 and 2008 provides Web Site Administration tool to modify configuration files. à in VS 2005 go to Wbsite à ASP.NET Configuration.

Web Site Administration tool provides control over the following settings:

  1. Security: You can add users, roles, and permissions for your web site.
  2. Application Configuration: Allows you to setup Application settings, SMTP, Debug and trace settings.
Provider Configuration: Specify settings for the database provide along with membership and roles.
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